List of fish that start with M

There are 646 fish that start with the letter M, from Mackerel to Mystus Catfish. Below you will find them listed alphabetically along with some general information about each. Click the toggle view buttons in the top right corner to switch between the card and the table view.

For each item you will find the following information

Order: The subclass the fish belongs to

Habitat: The places or type of weather the fish lives in

Scientific name: The designation that scientists use to catalog the species

Mackerel

Name: Mackerel

Order: Scombriformes

Habitat: Marine temperate and subtropical waters

Scientific name: Scomber scombrus

Mackerel Scad

Name: Mackerel Scad

Order: Perciformes

Habitat: Marine pelagic

Scientific name: Decapterus macarellus

Mackerel Shark

Name: Mackerel Shark

Order: Lamniformes

Habitat: Open ocean temperate and tropical waters

Scientific name: Lamnidae family

Mackerel Shark (Atlantic)

Name: Mackerel Shark (Atlantic)

Order: Lamniformes

Habitat: Marine (North Atlantic)

Scientific name: Lamna nasus

Mackerel Shark (Pacific)

Name: Mackerel Shark (Pacific)

Order: Lamniformes

Habitat: Marine (North Pacific)

Scientific name: Lamna ditropis

Mackerel Tuna

Name: Mackerel Tuna

Order: Scombriformes

Habitat: Tropical and subtropical marine waters

Scientific name: Euthynnus affinis

Madacascar Cichlid

Name: Madacascar Cichlid

Order: Cichliformes

Habitat: Freshwater

Scientific name: Paratilapia polleni

Madagascar Rainbowfish

Name: Madagascar Rainbowfish

Order: Atheriniformes

Habitat: Freshwater (Madagascar)

Scientific name: Bedotia madagascariensis

Madeira Ray

Name: Madeira Ray

Order: Myliobatiformes

Habitat: Marine benthic

Scientific name: Raja undulata

Madhya Pradesh Catfish

Name: Madhya Pradesh Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Rita rita

Madidi Catfish

Name: Madidi Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Pimelodus madinensis

Madtom

Name: Madtom

Order: Siluriformes

Habitat: Freshwater rivers and streams in North America

Scientific name: Noturus spp.

Madtom (Carolina)

Name: Madtom (Carolina)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus furiosus

Madtom (Frecklebelly)

Name: Madtom (Frecklebelly)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus munitus

Madtom (Mountain)

Name: Madtom (Mountain)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus eleutherus

Madtom (Northern)

Name: Madtom (Northern)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus stigmosus

Madtom (Piedmont)

Name: Madtom (Piedmont)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus baileyi

Madtom (Slender)

Name: Madtom (Slender)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus exilis

Madtom (Smoky)

Name: Madtom (Smoky)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus baileyi

Madtom (Speckled)

Name: Madtom (Speckled)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus leptacanthus

Madtom (Stonecat)

Name: Madtom (Stonecat)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus flavus

Madtom (Tadpole)

Name: Madtom (Tadpole)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus gyrinus

Madtom (Yellowfin)

Name: Madtom (Yellowfin)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus flavipinnis

Madtom Catfish

Name: Madtom Catfish

Order: Siluriformes

Habitat: Freshwater (North America)

Scientific name: Noturus

Magnificent Dartfish

Name: Magnificent Dartfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Nemateleotris magnifica

Magnificent Rabbitfish

Name: Magnificent Rabbitfish

Order: Siganiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Siganus magnificus

Magnificent Rasbora

Name: Magnificent Rasbora

Order: Cypriniformes

Habitat: Freshwater rivers and streams

Scientific name: Rasbora borapetensis

Magoeba Tilapia

Name: Magoeba Tilapia

Order: Cichliformes

Habitat: Freshwater

Scientific name: Oreochromis macrochir

Magpie Fairy Wrasse

Name: Magpie Fairy Wrasse

Order: Perciformes

Habitat: Marine (Pacific Ocean)

Scientific name: Cirrhilabrus aquamarinus

Maguindanao Tilapia

Name: Maguindanao Tilapia

Order: Cichliformes

Habitat: Freshwater

Scientific name: Oreochromis urolepis

Mahabalipuram Dragonet

Name: Mahabalipuram Dragonet

Order: Perciformes

Habitat: Marine (Indian Ocean)

Scientific name: Dragonetidae

Mahi Mahi (Blue)

Name: Mahi Mahi (Blue)

Order: Carangiformes

Habitat: Marine (Tropical/Subtropical Oceans)

Scientific name: Coryphaena hippurus (color variant)

Mahi-mahi

Name: Mahi-mahi

Order: Carangiformes

Habitat: Open ocean tropical and subtropical waters

Scientific name: Coryphaena hippurus

Mahimahi

Name: Mahimahi

Order: Carangiformes

Habitat: Open ocean tropical and subtropical waters

Scientific name: Coryphaena hippurus

Mahogany Snapper

Name: Mahogany Snapper

Order: Perciformes

Habitat: Marine

Scientific name: Lutjanus mahogani

Mahseer

Name: Mahseer

Order: Cypriniformes

Habitat: Freshwater rivers and lakes

Scientific name: Tor tor

Maiden Coral Trout

Name: Maiden Coral Trout

Order: Perciformes

Habitat: Coral reefs

Scientific name: Plectropomus maculatus

Makaira Marlin

Name: Makaira Marlin

Order: Istiophoriformes

Habitat: Open ocean tropical and temperate waters

Scientific name: Makaira spp.

Mako Shark

Name: Mako Shark

Order: Lamniformes

Habitat: Open ocean temperate and tropical waters

Scientific name: Isurus oxyrinchus

Makonde

Name: Makonde

Order: Siluriformes

Habitat: Freshwater rivers and lakes

Scientific name: Schilbe mystus

Malabar Batfish

Name: Malabar Batfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Platax teira

Malabar Danio

Name: Malabar Danio

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Devario malabaricus

Malabar Dottyback

Name: Malabar Dottyback

Order: Perciformes

Habitat: Marine (Indian Ocean)

Scientific name: Pseudochromis malabaricus

Malabar Grouper

Name: Malabar Grouper

Order: Perciformes

Habitat: Marine

Scientific name: Epinephelus malabaricus

Malabar Hill Trout

Name: Malabar Hill Trout

Order: Cypriniformes

Habitat: Freshwater (India)

Scientific name: Garra malabarica

Malabar Mud Skipper

Name: Malabar Mud Skipper

Order: Gobiiformes

Habitat: Brackish/Marine (Southeast Asia)

Scientific name: Periophthalmus malaccensis

Malabar Snakehead

Name: Malabar Snakehead

Order: Perciformes

Habitat: Freshwater (India)

Scientific name: Channa malabarica

Malabar Snapper

Name: Malabar Snapper

Order: Perciformes

Habitat: Marine

Scientific name: Lutjanus malabaricus

Malabar Sole

Name: Malabar Sole

Order: Pleuronectiformes

Habitat: Brackish/Marine

Scientific name: Brachirus orientalis

Malabar Spinner Shark

Name: Malabar Spinner Shark

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Carcharhinus sorrah

Malabar Whiptail

Name: Malabar Whiptail

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Pentapodus bifasciatus

Malawi Cichlid

Name: Malawi Cichlid

Order: Cichliformes

Habitat: Freshwater

Scientific name: Various Cichlidae

Malawi Crab-Eater

Name: Malawi Crab-Eater

Order: Perciformes

Habitat: Freshwater (Lake Malawi)

Scientific name: Cynotilapia afra (Malawi variant)

Malawi Eye-Biter

Name: Malawi Eye-Biter

Order: Perciformes

Habitat: Freshwater (Lake Malawi)

Scientific name: Dimidiochromis compressiceps

Malawi Eyebiter

Name: Malawi Eyebiter

Order: Cichliformes

Habitat: Freshwater

Scientific name: Dimidiochromis compressiceps

Malawi Hawk Cichlid

Name: Malawi Hawk Cichlid

Order: Perciformes

Habitat: Freshwater (Lake Malawi)

Scientific name: Nimbochromis livingstonii

Malawi Mormyrid

Name: Malawi Mormyrid

Order: Mormyriformes

Habitat: Freshwater (Lake Malawi)

Scientific name: Mormyrus longirostris

Malawi Perch

Name: Malawi Perch

Order: Cichliformes

Habitat: Freshwater

Scientific name: Haplochromis livingstonii

Malawi Sardine

Name: Malawi Sardine

Order: Clupeiformes

Habitat: Freshwater

Scientific name: Engraulicypris sardella

Malawi Tilapia

Name: Malawi Tilapia

Order: Cichliformes

Habitat: Freshwater

Scientific name: Oreochromis shiranus

Malayan Bala Shark

Name: Malayan Bala Shark

Order: Cypriniformes

Habitat: Freshwater (Southeast Asia)

Scientific name: Balantiocheilos melanopterus (regional variant)

Malayan Clown Loach

Name: Malayan Clown Loach

Order: Cypriniformes

Habitat: Freshwater (Southeast Asia)

Scientific name: Chromobotia macracanthus (regional variant)

Malayan Glassfish

Name: Malayan Glassfish

Order: Perciformes

Habitat: Freshwater (South Asia)

Scientific name: Chanda nama

Malayan Leaf Fish

Name: Malayan Leaf Fish

Order: Perciformes

Habitat: Freshwater (Southeast Asia)

Scientific name: Nandus nebulosus

Malayan Leaffish

Name: Malayan Leaffish

Order: Perciformes

Habitat: Freshwater

Scientific name: Nandus nebulosus

Malayan Mudskipper

Name: Malayan Mudskipper

Order: Gobiiformes

Habitat: Brackish/Marine intertidal

Scientific name: Periophthalmus novemradiatus

Malayan Scat

Name: Malayan Scat

Order: Perciformes

Habitat: Brackish and marine waters

Scientific name: Scatophagus argus

Malayan Toadfish

Name: Malayan Toadfish

Order: Batrachoidiformes

Habitat: Marine/Brackish

Scientific name: Batrachomoeus trispinosus

Malcoha Blenny

Name: Malcoha Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Ecsenius malcolmi

Maldive Anemonefish

Name: Maldive Anemonefish

Order: Perciformes

Habitat: Marine

Scientific name: Amphiprion nigripes

Maldive Butterflyfish

Name: Maldive Butterflyfish

Order: Perciformes

Habitat: Marine

Scientific name: Chaetodon xanthurus

Maldive Grubfish

Name: Maldive Grubfish

Order: Perciformes

Habitat: Marine

Scientific name: Parapercis alboguttata

Maldive Napoleon Wrasse

Name: Maldive Napoleon Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Cheilinus undulatus

Maldive Spinefoot

Name: Maldive Spinefoot

Order: Siganiformes

Habitat: Marine

Scientific name: Siganus luridus

Maldive Triggerfish

Name: Maldive Triggerfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Rhinecanthus lunula

Maldive Triplefin

Name: Maldive Triplefin

Order: Blenniiformes

Habitat: Marine

Scientific name: Enneapterygius niue

Maldivian Anemonefish

Name: Maldivian Anemonefish

Order: Perciformes

Habitat: Marine

Scientific name: Amphiprion nigripes

Malebo Pufferfish

Name: Malebo Pufferfish

Order: Tetraodontiformes

Habitat: Freshwater

Scientific name: Tetraodon mbu

Maledan Halfbeak

Name: Maledan Halfbeak

Order: Beloniformes

Habitat: Marine (Indo-West Pacific)

Scientific name: Hyporhamphus maledan

Mali Triggerfish

Name: Mali Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Eastern Atlantic)

Scientific name: Balistes mali

Malini's Pipefish

Name: Malini's Pipefish

Order: Syngnathiformes

Habitat: Marine (Red Sea)

Scientific name: Syngnathus malini

Malleate Worm Eel

Name: Malleate Worm Eel

Order: Anguilliformes

Habitat: Marine

Scientific name: Muraenichthys gymnotus

Malpe Snapper

Name: Malpe Snapper

Order: Perciformes

Habitat: Marine neritic

Scientific name: Lutjanus malabaricus

Malpolon Batrachus

Name: Malpolon Batrachus

Order: Lophiiformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Malpolon batrachus

Maltese Ray

Name: Maltese Ray

Order: Myliobatiformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Raja undulata

Mamba Moray

Name: Mamba Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax mambus

Mami Watafish

Name: Mami Watafish

Order: Characiformes

Habitat: Freshwater

Scientific name: Hydrocynus brevis

Man-of-War Fish

Name: Man-of-War Fish

Order: Perciformes

Habitat: Marine (Cosmopolitan)

Scientific name: Nomeus gronovii

Manchurian Perch

Name: Manchurian Perch

Order: Perciformes

Habitat: Freshwater

Scientific name: Siniperca chuatsi

Manchurian Trout

Name: Manchurian Trout

Order: Salmoniformes

Habitat: Freshwater

Scientific name: Brachymystax lenok tsinlingensis

Mandalay Clown Loach

Name: Mandalay Clown Loach

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Botia kubotai

Mandarin Dogface Puffer

Name: Mandarin Dogface Puffer

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Arothron meleagris

Mandarin Dogfish

Name: Mandarin Dogfish

Order: Squaliformes

Habitat: Deep marine waters

Scientific name: Cirrhigaleus barbifer

Mandarin Dragonet

Name: Mandarin Dragonet

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Synchiropus splendidus

Mandarinfish

Name: Mandarinfish

Order: Syngnathiformes

Habitat: Coral reefs in the Indo-Pacific

Scientific name: Synchiropus splendidus

Mandarinfish (Green)

Name: Mandarinfish (Green)

Order: Syngnathiformes

Habitat: Marine

Scientific name: Synchiropus splendidus

Mandarinfish (Red)

Name: Mandarinfish (Red)

Order: Syngnathiformes

Habitat: Marine

Scientific name: Synchiropus rubriceps

Maneater Shark

Name: Maneater Shark

Order: Carcharhiniformes

Habitat: Marine (Cosmopolitan)

Scientific name: Carcharodon carcharias

Maned Blenny

Name: Maned Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Cirripectes variolosus

Manganese Blenny

Name: Manganese Blenny

Order: Blenniiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Salarias ramosus

Mangar

Name: Mangar

Order: Cypriniformes

Habitat: Freshwater (Indian Subcontinent)

Scientific name: Gibelion catla

Mangrove Cardinalfish

Name: Mangrove Cardinalfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Sphaeramia nematoptera (mangrove variant)

Mangrove Jack

Name: Mangrove Jack

Order: Perciformes

Habitat: Marine/Brackish

Scientific name: Lutjanus argentimaculatus

Mangrove Killifish

Name: Mangrove Killifish

Order: Cyprinodontiformes

Habitat: Brackish/Freshwater (Americas)

Scientific name: Kryptolebias marmoratus

Mangrove Perch

Name: Mangrove Perch

Order: Perciformes

Habitat: Marine/Brackish (Indo-Pacific)

Scientific name: Lutjanus calcarifer (mangrove variant)

Mangrove Red Snapper

Name: Mangrove Red Snapper

Order: Perciformes

Habitat: Marine/Brackish

Scientific name: Lutjanus argentimaculatus

Mangrove Rivulus

Name: Mangrove Rivulus

Order: Cyprinodontiformes

Habitat: Mangrove swamps

Scientific name: Kryptolebias marmoratus

Mangrove Snapper

Name: Mangrove Snapper

Order: Perciformes

Habitat: Brackish/Marine

Scientific name: Lutjanus griseus

Manila Seahorse

Name: Manila Seahorse

Order: Syngnathiformes

Habitat: Marine

Scientific name: Hippocampus kuda

Manini

Name: Manini

Order: Perciformes

Habitat: Marine

Scientific name: Acanthurus triostegus

Manjuari

Name: Manjuari

Order: Lepisosteiformes

Habitat: Freshwater rivers and lakes

Scientific name: Atractosteus tristoechus

Mann's Shark

Name: Mann's Shark

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Carcharhinus mannii

Manta Ray

Name: Manta Ray

Order: Myliobatiformes

Habitat: Open ocean tropical and subtropical waters

Scientific name: Mobulidae family

Many-Barred Grunt

Name: Many-Barred Grunt

Order: Perciformes

Habitat: Marine

Scientific name: Pomadasys multimaculatus

Many-Spotted Blenny

Name: Many-Spotted Blenny

Order: Perciformes

Habitat: Marine

Scientific name: Xiphasia matsubarai

Many-Spotted Toby

Name: Many-Spotted Toby

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Canthigaster solandri

Many-banded Archerfish

Name: Many-banded Archerfish

Order: Perciformes

Habitat: Brackish and freshwater

Scientific name: Toxotes polylepis

Many-banded Pipefish

Name: Many-banded Pipefish

Order: Syngnathiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Doryrhamphus multiannulatus

Many-barred Sand Diver

Name: Many-barred Sand Diver

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Trichonotus halstead

Many-eyed Dwarf Goby

Name: Many-eyed Dwarf Goby

Order: Gobiiformes

Habitat: Marine (Western Pacific)

Scientific name: Trimma okinawae

Many-eyed Lizardfish

Name: Many-eyed Lizardfish

Order: Aulopiformes

Habitat: Marine

Scientific name: Synodus lacertinus

Many-horned Cowfish

Name: Many-horned Cowfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Lactoria cornuta

Many-lined Cardinalfish

Name: Many-lined Cardinalfish

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Apogon multilineatus

Many-lined Sweetlips

Name: Many-lined Sweetlips

Order: Perciformes

Habitat: Marine

Scientific name: Plectorhinchus multilineatus

Many-spined Goby

Name: Many-spined Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Bathygobius rubropunctatus

Many-spined Seahorse

Name: Many-spined Seahorse

Order: Syngnathiformes

Habitat: Marine (Western Pacific)

Scientific name: Hippocampus multispinosus

Many-spotted Goby

Name: Many-spotted Goby

Order: Gobiiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Amblygobius phalaena

Many-spotted Sweetlips

Name: Many-spotted Sweetlips

Order: Perciformes

Habitat: Coral reefs

Scientific name: Plectorhinchus chaetodonoides

Maori Wrasse

Name: Maori Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Oxycheilinus unifasciatus

Map Pufferfish

Name: Map Pufferfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Arothron mappa

Maps Angelfish

Name: Maps Angelfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Pomacanthus maculosus

Maptuna

Name: Maptuna

Order: Scombriformes

Habitat: Marine (Worldwide)

Scientific name: Auxis rochei

Maraena Cisco

Name: Maraena Cisco

Order: Salmoniformes

Habitat: Freshwater

Scientific name: Coregonus maraena

Maraudichthys

Name: Maraudichthys

Order: Perciformes

Habitat: Marine

Scientific name: Maraudichthys spinosus

Marble Catfish

Name: Marble Catfish

Order: Siluriformes

Habitat: Freshwater (Africa)

Scientific name: Pareutropius debauwi

Marble Goby

Name: Marble Goby

Order: Gobiiformes

Habitat: Freshwater and brackish waters

Scientific name: Oxyeleotris marmorata

Marble Trout

Name: Marble Trout

Order: Salmoniformes

Habitat: Freshwater rivers and lakes

Scientific name: Salmo marmoratus

Marbled Blenny

Name: Marbled Blenny

Order: Blenniiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Entomacrodus marmoratus

Marbled Blind Goby

Name: Marbled Blind Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Typhlogobius californiensis

Marbled Cardinalfish

Name: Marbled Cardinalfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Sphaeramia orbicularis

Marbled Cat Shark

Name: Marbled Cat Shark

Order: Carcharhiniformes

Habitat: Marine (Indo-West Pacific)

Scientific name: Atelomycterus marmoratus

Marbled Catfish

Name: Marbled Catfish

Order: Siluriformes

Habitat: Freshwater rivers and lakes

Scientific name: Silurus glanis

Marbled Catfish (Neotropical)

Name: Marbled Catfish (Neotropical)

Order: Siluriformes

Habitat: Freshwater

Scientific name: Pimelodus maculatus

Marbled Conefish

Name: Marbled Conefish

Order: Perciformes

Habitat: Marine

Scientific name: Congrogadus subducens

Marbled Convict Blenny

Name: Marbled Convict Blenny

Order: Perciformes

Habitat: Marine

Scientific name: Pholidichthys leucotaenia

Marbled Coral Grouper

Name: Marbled Coral Grouper

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Plectropomus maculatus

Marbled Crocodilefish

Name: Marbled Crocodilefish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Cymbacephalus marmoratus

Marbled Dragonet

Name: Marbled Dragonet

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Synchiropus marmoratus

Marbled Eel

Name: Marbled Eel

Order: Anguilliformes

Habitat: Freshwater/Brackish

Scientific name: Anguilla marmorata

Marbled Electric Ray

Name: Marbled Electric Ray

Order: Torpediniformes

Habitat: Marine

Scientific name: Torpedo marmorata

Marbled Flathead

Name: Marbled Flathead

Order: Scorpaeniformes

Habitat: Marine (Western Pacific)

Scientific name: Platycephalus marmoratus

Marbled Flounder

Name: Marbled Flounder

Order: Pleuronectiformes

Habitat: Marine (Northwest Pacific)

Scientific name: Pleuronectes yokohamae

Marbled Goatfish

Name: Marbled Goatfish

Order: Perciformes

Habitat: Marine

Scientific name: Upeneus tragula

Marbled Goby

Name: Marbled Goby

Order: Gobiiformes

Habitat: Freshwater

Scientific name: Oxyeleotris marmorata

Marbled Grouper

Name: Marbled Grouper

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Epinephelus fuscoguttatus

Marbled Grubfish

Name: Marbled Grubfish

Order: Perciformes

Habitat: Marine

Scientific name: Parapercis allporti

Marbled Headstander

Name: Marbled Headstander

Order: Characiformes

Habitat: Freshwater

Scientific name: Abramites hypselonotus

Marbled Honeycomb Moray

Name: Marbled Honeycomb Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax favagineus

Marbled Knife Fish

Name: Marbled Knife Fish

Order: Gymnotiformes

Habitat: Freshwater (South America)

Scientific name: Gymnotus marmoratus

Marbled Lungfish

Name: Marbled Lungfish

Order: Ceratodontiformes

Habitat: Freshwater lakes and rivers in Africa

Scientific name: Protopterus aethiopicus

Marbled Moray

Name: Marbled Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Uropterygius marmoratus

Marbled Moray Eel

Name: Marbled Moray Eel

Order: Anguilliformes

Habitat: Marine (Indo-Pacific)

Scientific name: Uropterygius marmoratus

Marbled Mouthbrooder

Name: Marbled Mouthbrooder

Order: Perciformes

Habitat: Freshwater

Scientific name: Pseudocrenilabrus philander

Marbled New World Goby

Name: Marbled New World Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Artedius corallinus

Marbled Parrotfish

Name: Marbled Parrotfish

Order: Perciformes

Habitat: Marine

Scientific name: Leptoscarus vaigiensis

Marbled Pike Cichlid

Name: Marbled Pike Cichlid

Order: Perciformes

Habitat: Freshwater (South America)

Scientific name: Crenicichla marmorata

Marbled Rockcod

Name: Marbled Rockcod

Order: Perciformes

Habitat: Marine

Scientific name: Epinephelus fuscoguttatus

Marbled Rockskipper

Name: Marbled Rockskipper

Order: Blenniiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Istiblennius marmoratus

Marbled Sailfin Blenny

Name: Marbled Sailfin Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Cirripectes alleni

Marbled Sleeper

Name: Marbled Sleeper

Order: Gobiiformes

Habitat: Freshwater/Brackish (Southeast Asia)

Scientific name: Oxyeleotris marmorata

Marbled Sleepy Cod

Name: Marbled Sleepy Cod

Order: Perciformes

Habitat: Freshwater

Scientific name: Oxyeleotris lineolata

Marbled Sole

Name: Marbled Sole

Order: Pleuronectiformes

Habitat: Marine (Northwest Pacific)

Scientific name: Pleuronectes schrenki

Marbled Solefish

Name: Marbled Solefish

Order: Pleuronectiformes

Habitat: Marine (Northeast Atlantic)

Scientific name: Pleuronectes flesus

Marbled Stargazer

Name: Marbled Stargazer

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Uranoscopus marmoratus

Marbled Swellshark

Name: Marbled Swellshark

Order: Carcharhiniformes

Habitat: Marine benthic

Scientific name: Cephaloscyllium trigonocephalum

Marbled Toadfish

Name: Marbled Toadfish

Order: Batrachoidiformes

Habitat: Marine

Scientific name: Batrachoides gilberti

Marbled Torpedo Ray

Name: Marbled Torpedo Ray

Order: Torpediniformes

Habitat: Marine

Scientific name: Torpedo marmorata

Marbled Wrasse

Name: Marbled Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Choerodon marmoratus

Marblehead Blenny

Name: Marblehead Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Phololis ornata

Marco Polo Cichlid

Name: Marco Polo Cichlid

Order: Perciformes

Habitat: Freshwater

Scientific name: Aulonocara stuartgranti

Mardi Gras Blenny

Name: Mardi Gras Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Ecsenius yaeyamaensis

Mardi Gras Wrasse

Name: Mardi Gras Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Halichoeres burekae

Maren's Pipefish

Name: Maren's Pipefish

Order: Syngnathiformes

Habitat: Marine

Scientific name: Corythoichthys marenarum

Margarita Goby

Name: Margarita Goby

Order: Gobiiformes

Habitat: Marine (Eastern Pacific)

Scientific name: Elacatinus puncticulatus

Margarita Rockfish

Name: Margarita Rockfish

Order: Perciformes

Habitat: Marine

Scientific name: Sebastes notius

Margarite Scorpionfish

Name: Margarite Scorpionfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Scorpaena margarita

Margate

Name: Margate

Order: Perciformes

Habitat: Marine

Scientific name: Haemulon album

Margay

Name: Margay

Order: Perciformes

Habitat: Freshwater (Africa)

Scientific name: Labeobarbus margaritarius

Margined Flathead

Name: Margined Flathead

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Platycephalus indicus

Margined Grenadier

Name: Margined Grenadier

Order: Gadiformes

Habitat: Marine

Scientific name: Coelorinchus marginatus

Margined Perch

Name: Margined Perch

Order: Perciformes

Habitat: Marine

Scientific name: Paracanthopoma margined

Margined Scorpionfish

Name: Margined Scorpionfish

Order: Scorpaeniformes

Habitat: Marine (Atlantic Ocean)

Scientific name: Scorpaena histrio

Mariana Snailfish

Name: Mariana Snailfish

Order: Perciformes

Habitat: Extreme deep sea trenches

Scientific name: Pseudoliparis swirei

Marianas Anglerfish

Name: Marianas Anglerfish

Order: Lophiiformes

Habitat: Marine

Scientific name: Lophichthys spinosus

Marianas Dragonet

Name: Marianas Dragonet

Order: Perciformes

Habitat: Marine

Scientific name: Callionymus marleyi

Marianas Viperfish

Name: Marianas Viperfish

Order: Stomiiformes

Habitat: Marine

Scientific name: Chauliodus pammelas

Marine Betta

Name: Marine Betta

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Calloplesiops altivelis

Marine Goldfish

Name: Marine Goldfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogon apogonoides

Marine Hatchetfish

Name: Marine Hatchetfish

Order: Stomiiformes

Habitat: Deep marine waters

Scientific name: Sternoptychidae family

Marion Scabbardfish

Name: Marion Scabbardfish

Order: Perciformes

Habitat: Marine

Scientific name: Aphanopus mikhailini

Marked Rockfish

Name: Marked Rockfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Sebastes notius

Marlin

Name: Marlin

Order: Istiophoriformes

Habitat: Open ocean tropical and temperate waters

Scientific name: Makaira nigricans

Marlin (Black)

Name: Marlin (Black)

Order: Istiophoriformes

Habitat: Marine

Scientific name: Makaira indica

Marlin (Blue)

Name: Marlin (Blue)

Order: Istiophoriformes

Habitat: Marine

Scientific name: Makaira nigricans

Marlin (Striped)

Name: Marlin (Striped)

Order: Istiophoriformes

Habitat: Marine

Scientific name: Kajikia audax

Marlin (White)

Name: Marlin (White)

Order: Istiophoriformes

Habitat: Marine

Scientific name: Kajikia albida

Marlin-spike Conger

Name: Marlin-spike Conger

Order: Anguilliformes

Habitat: Marine (Eastern Atlantic)

Scientific name: Gnathophis mystax

Marlinspike Fish

Name: Marlinspike Fish

Order: Aulopiformes

Habitat: Marine

Scientific name: Malacosteus niger

Marlinspiker Fish

Name: Marlinspiker Fish

Order: Ophidiiformes

Habitat: Marine

Scientific name: Macrosmia phalacra

Marmorata Parrotfish

Name: Marmorata Parrotfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Scarus marmoratus

Marmorated Sculpin

Name: Marmorated Sculpin

Order: Scorpaeniformes

Habitat: Freshwater

Scientific name: Cottus kessleri

Marmorated Spinefoot

Name: Marmorated Spinefoot

Order: Siganiformes

Habitat: Marine

Scientific name: Siganus rivulatus

Marquesan Anthias

Name: Marquesan Anthias

Order: Perciformes

Habitat: Marine (Marquesas Islands)

Scientific name: Pseudanthias pictilis

Marquesan Grouper

Name: Marquesan Grouper

Order: Perciformes

Habitat: Marine (Marquesas Islands)

Scientific name: Epinephelus irrorata

Marquesan Moray

Name: Marquesan Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax marquesensis

Marquesan Squirrelfish

Name: Marquesan Squirrelfish

Order: Beryciformes

Habitat: Marine

Scientific name: Sargocentron marleyi

Marquesan Swellshark

Name: Marquesan Swellshark

Order: Carcharhiniformes

Habitat: Marine (Eastern Pacific)

Scientific name: Cephaloscyllium marquesanum

Marsbar Lionfish

Name: Marsbar Lionfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Pterois marsupialis

Marshall Island Pipefish

Name: Marshall Island Pipefish

Order: Syngnathiformes

Habitat: Marine

Scientific name: Choeroichthys sculptus

Marshall Islands Goby

Name: Marshall Islands Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Trimma stobbsi

Masai Toothcarp

Name: Masai Toothcarp

Order: Cyprinodontiformes

Habitat: Freshwater

Scientific name: Nothobranchius kilomberoensis

Mascarene Flyingfish

Name: Mascarene Flyingfish

Order: Beloniformes

Habitat: Marine

Scientific name: Cheilopogon nigricans

Mascarene Grunt

Name: Mascarene Grunt

Order: Perciformes

Habitat: Marine

Scientific name: Pomadasys maculatus

Mascarene Sergeant

Name: Mascarene Sergeant

Order: Perciformes

Habitat: Marine

Scientific name: Abudefduf vaigiensis

Masked Angelfish

Name: Masked Angelfish

Order: Perciformes

Habitat: Marine

Scientific name: Genicanthus personatus

Masked Barbfish

Name: Masked Barbfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Scorpaena maderensis

Masked Blenny

Name: Masked Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Blennius ocellaris

Masked Dartfish

Name: Masked Dartfish

Order: Perciformes

Habitat: Marine

Scientific name: Ptereleotris randalli

Masked Dwarf Goby

Name: Masked Dwarf Goby

Order: Gobiiformes

Habitat: Marine (Western Pacific)

Scientific name: Trimma anaima

Masked Filefish

Name: Masked Filefish

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Oxymonacanthus longirostris (variant)

Masked Goby

Name: Masked Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Coryphopterus personatus

Masked Moray

Name: Masked Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Callechelys marmorata

Masked Owlfish

Name: Masked Owlfish

Order: Aulopiformes

Habitat: Marine

Scientific name: Scopelosaurus harryi

Masked Parrottfish

Name: Masked Parrottfish

Order: Perciformes

Habitat: Marine

Scientific name: Scarus spinosus

Masked Puffer

Name: Masked Puffer

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Arothron diadematus

Masked Rabbitfish

Name: Masked Rabbitfish

Order: Perciformes

Habitat: Marine

Scientific name: Siganus puellus

Masked Sandperch

Name: Masked Sandperch

Order: Perciformes

Habitat: Marine

Scientific name: Parapercis rubromaculata

Masked Swellshark

Name: Masked Swellshark

Order: Carcharhiniformes

Habitat: Marine (Western Pacific)

Scientific name: Cephaloscyllium speccum

Masked Toby

Name: Masked Toby

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Canthigaster valentini (variant)

Masked Triggerfish

Name: Masked Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Sufflamen fraenatum

Masked Wrasse

Name: Masked Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Coris gaimard

Massasauga Rattlesnake

Name: Massasauga Rattlesnake

Order: Squamata

Habitat: Wetlands and grasslands (error: not a fish)

Scientific name: Sistrurus catenatus

Masu Salmon

Name: Masu Salmon

Order: Salmoniformes

Habitat: Freshwater/Marine

Scientific name: Oncorhynchus masou

Masu Trout

Name: Masu Trout

Order: Salmoniformes

Habitat: Freshwater/Anadromous

Scientific name: Oncorhynchus masou

Mata Goby

Name: Mata Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Gobiodon atrangulatus

Matamata

Name: Matamata

Order: Characiformes

Habitat: Freshwater

Scientific name: Mylossoma duriventre

Matamata Catfish

Name: Matamata Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Platystacus cotylephorus

Mauligana

Name: Mauligana

Order: Perciformes

Habitat: Marine

Scientific name: Scomberoides tol

Mauritanian Hake

Name: Mauritanian Hake

Order: Gadiformes

Habitat: Marine

Scientific name: Merluccius senegalensis

Mauritanian Razorfish

Name: Mauritanian Razorfish

Order: Perciformes

Habitat: Marine

Scientific name: Centriscops humerosus

Mauritian Angelfish

Name: Mauritian Angelfish

Order: Perciformes

Habitat: Deep reefs of Mauritius

Scientific name: Apolemichthys arcuatus

Mauritian Butterflyfish

Name: Mauritian Butterflyfish

Order: Perciformes

Habitat: Marine (Western Indian Ocean)

Scientific name: Chaetodon marleyi

Mauritian Damselfish

Name: Mauritian Damselfish

Order: Perciformes

Habitat: Marine (Indian Ocean)

Scientific name: Pomacentrus mauritiensis

Mauritian Pipefish

Name: Mauritian Pipefish

Order: Syngnathiformes

Habitat: Marine (Indian Ocean)

Scientific name: Syngnathus mauritianus

Mauritian Triggerfish

Name: Mauritian Triggerfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Balistes mauritianus

Mauritius Cardinalfish

Name: Mauritius Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogonichthys brachygrammus

Mauritius Moray

Name: Mauritius Moray

Order: Anguilliformes

Habitat: Marine reef

Scientific name: Gymnothorax mauritianus

Mauve Stinger

Name: Mauve Stinger

Order: Gymnotiformes

Habitat: Freshwater

Scientific name: Eigenmannia virescens

Maxi-Minnow

Name: Maxi-Minnow

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Rhynchocypris oxycephalus

Maxwell's Pipefish

Name: Maxwell's Pipefish

Order: Syngnathiformes

Habitat: Marine (Western Australia)

Scientific name: Syngnathus maxwelli

Maya Cichlid

Name: Maya Cichlid

Order: Cichliformes

Habitat: Freshwater

Scientific name: Vieja maculicauda

Mayan Catfish

Name: Mayan Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Rhamdia guatemalensis

Mayan Cichlid

Name: Mayan Cichlid

Order: Cichliformes

Habitat: Freshwater/Brackish

Scientific name: Cichlasoma urophthalmus

Mayan Goodeid

Name: Mayan Goodeid

Order: Cyprinodontiformes

Habitat: Freshwater (Mexico)

Scientific name: Allodontichthys hubbsi

Mayan Sweeper

Name: Mayan Sweeper

Order: Perciformes

Habitat: Marine (Western Atlantic)

Scientific name: Pempheris schomburgkii

Mazzarella's Dragonfish

Name: Mazzarella's Dragonfish

Order: Stomiiformes

Habitat: Marine

Scientific name: Bathophilus mazzarellai

Meagre

Name: Meagre

Order: Perciformes

Habitat: Marine

Scientific name: Argyrosomus regius

Medaka

Name: Medaka

Order: Beloniformes

Habitat: Freshwater

Scientific name: Oryzias latipes

Medaka Ricefish

Name: Medaka Ricefish

Order: Beloniformes

Habitat: Freshwater

Scientific name: Oryzias latipes

Mediterranean Anglerfish

Name: Mediterranean Anglerfish

Order: Lophiiformes

Habitat: Marine

Scientific name: Lophius piscatorius

Mediterranean Barracuda

Name: Mediterranean Barracuda

Order: Scombriformes

Habitat: Mediterranean Sea

Scientific name: Sphyraena viridensis

Mediterranean Blenny

Name: Mediterranean Blenny

Order: Blenniiformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Blennius ocellaris

Mediterranean Cardinalfish

Name: Mediterranean Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogon imberbis

Mediterranean Chromis

Name: Mediterranean Chromis

Order: Perciformes

Habitat: Marine

Scientific name: Chromis chromis

Mediterranean Damselfish

Name: Mediterranean Damselfish

Order: Perciformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Chromis chromis

Mediterranean Fanfish

Name: Mediterranean Fanfish

Order: Perciformes

Habitat: Marine

Scientific name: Pteractea coenei

Mediterranean Flyingfish

Name: Mediterranean Flyingfish

Order: Beloniformes

Habitat: Marine

Scientific name: Cheilopogon heterurus

Mediterranean Goby

Name: Mediterranean Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Gobius niger

Mediterranean Goldband Snipefish

Name: Mediterranean Goldband Snipefish

Order: Syngnathiformes

Habitat: Marine

Scientific name: Macroramphosus scolopax

Mediterranean Horse Mackerel

Name: Mediterranean Horse Mackerel

Order: Perciformes

Habitat: Marine

Scientific name: Trachurus mediterraneus

Mediterranean Moray

Name: Mediterranean Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Muraena helena

Mediterranean Needlefish

Name: Mediterranean Needlefish

Order: Beloniformes

Habitat: Marine

Scientific name: Belone belone

Mediterranean Parrotfish

Name: Mediterranean Parrotfish

Order: Perciformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Sparisoma cretense

Mediterranean Pearlfish

Name: Mediterranean Pearlfish

Order: Ophidiiformes

Habitat: Marine

Scientific name: Carapus acus

Mediterranean Picked Dogfish

Name: Mediterranean Picked Dogfish

Order: Squaliformes

Habitat: Marine

Scientific name: Squalus blainville

Mediterranean Pike

Name: Mediterranean Pike

Order: Esociformes

Habitat: Freshwater

Scientific name: Esox lucius

Mediterranean Porgy

Name: Mediterranean Porgy

Order: Perciformes

Habitat: Marine

Scientific name: Sparus aurata

Mediterranean Rainbow Wrasse

Name: Mediterranean Rainbow Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Coris julis

Mediterranean Red Mullet

Name: Mediterranean Red Mullet

Order: Perciformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Mullus surmuletus

Mediterranean Sand Smelt

Name: Mediterranean Sand Smelt

Order: Atheriniformes

Habitat: Marine

Scientific name: Atherina boyeri

Mediterranean Scorpionfish

Name: Mediterranean Scorpionfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Scorpaena scrofa

Mediterranean Shad

Name: Mediterranean Shad

Order: Clupeiformes

Habitat: Brackish/Freshwater

Scientific name: Alosa agone

Mediterranean Sole

Name: Mediterranean Sole

Order: Pleuronectiformes

Habitat: Marine

Scientific name: Solea solea

Mediterranean Spearfish

Name: Mediterranean Spearfish

Order: Perciformes

Habitat: Marine

Scientific name: Tetrapturus belone

Mediterranean Spiny Dogfish

Name: Mediterranean Spiny Dogfish

Order: Squaliformes

Habitat: Marine

Scientific name: Squalus acanthias

Mediterranean Spotted Ray

Name: Mediterranean Spotted Ray

Order: Myliobatiformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Raja miraletus

Mediterranean Stargazer

Name: Mediterranean Stargazer

Order: Perciformes

Habitat: Marine

Scientific name: Uranoscopus scaber

Mediterranean Stonefish

Name: Mediterranean Stonefish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Synanceia verrucosa

Mediterranean Striped Goby

Name: Mediterranean Striped Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Gobius vittatus

Mediterranean Swellshark

Name: Mediterranean Swellshark

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Cephaloscyllium stellare

Mediterranean Tripodfish

Name: Mediterranean Tripodfish

Order: Aulopiformes

Habitat: Marine

Scientific name: Bathypterois mediterraneus

Mediterranean Undulate Ray

Name: Mediterranean Undulate Ray

Order: Rajiformes

Habitat: Marine

Scientific name: Raja undulata

Mediterranean Wrasse

Name: Mediterranean Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Symphodus mediterraneus

Medusa Fish

Name: Medusa Fish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Psenes arafurensis

Meek's Cichlid

Name: Meek's Cichlid

Order: Cichliformes

Habitat: Freshwater

Scientific name: Thorichthys meeki

Meeker's Goby

Name: Meeker's Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Eviota meeki

Megamouth Shark

Name: Megamouth Shark

Order: Lamniformes

Habitat: Deep ocean waters

Scientific name: Megachasma pelagios

Megatron

Name: Megatron

Order: Characiformes

Habitat: Freshwater rivers (error: not a fish)

Scientific name: Megaleporinus obtusidens

Meiacanthus Blenny

Name: Meiacanthus Blenny

Order: Blenniiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Meiacanthus

Mekong Barb

Name: Mekong Barb

Order: Cypriniformes

Habitat: Freshwater (Mekong River basin)

Scientific name: Hypsibarbus pierrei

Mekong Eel

Name: Mekong Eel

Order: Anguilliformes

Habitat: Freshwater/Brackish (Mekong River basin)

Scientific name: Anguilla moolen

Mekong Giant Barb

Name: Mekong Giant Barb

Order: Cypriniformes

Habitat: Freshwater (Mekong River basin)

Scientific name: Catlocarpio siamensis

Mekong Giant Catfish

Name: Mekong Giant Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Pangasianodon gigas

Mekong Ray

Name: Mekong Ray

Order: Myliobatiformes

Habitat: Freshwater (Southeast Asia)

Scientific name: Himantura polylepis (Mekong population)

Mekong Shark

Name: Mekong Shark

Order: Carcharhiniformes

Habitat: Freshwater/Brackish (Southeast Asia)

Scientific name: Glyphis gangeticus (Mekong population)

Mekong Shark Catfish

Name: Mekong Shark Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Pangasius hypophthalmus

Melanatidae

Name: Melanatidae

Order: Perciformes

Habitat: Freshwater rivers (error: not a fish)

Scientific name: Melanatidae family

Melaned Angler

Name: Melaned Angler

Order: Lophiiformes

Habitat: Marine

Scientific name: Melanocetus johnsonii

Melanesian Archerfish

Name: Melanesian Archerfish

Order: Perciformes

Habitat: Freshwater/Brackish

Scientific name: Toxotes oligolepis

Melanesian Cardinalfish

Name: Melanesian Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogonichthys melas

Melanesian Damselfish

Name: Melanesian Damselfish

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Pomacentrus melanesiae

Melanesian Shark

Name: Melanesian Shark

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Carcharhinus amblyrhynchoides

Melanistic Damselfish

Name: Melanistic Damselfish

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Stegastes nigricans (dark morph)

Melanopareia

Name: Melanopareia

Order: Characiformes

Habitat: Freshwater (South America)

Scientific name: Melanopareia torquata

Melanotaenia Rainbowfish

Name: Melanotaenia Rainbowfish

Order: Atheriniformes

Habitat: Freshwater (Australia)

Scientific name: Melanotaenia duboulayi

Melanurus Wrasse

Name: Melanurus Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Halichoeres melanurus

Melbourne Anglerfish

Name: Melbourne Anglerfish

Order: Lophiiformes

Habitat: Marine

Scientific name: Rhynchocera melbourneensis

Melbourne Skate

Name: Melbourne Skate

Order: Rajiformes

Habitat: Marine (Southeastern Australia)

Scientific name: Dipturus whitleyi

Melichthys Triggerfish

Name: Melichthys Triggerfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Melichthys niger

Melo-melo Wrasse

Name: Melo-melo Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Halichoeres melanochir

Melon Butterflyfish

Name: Melon Butterflyfish

Order: Perciformes

Habitat: Marine

Scientific name: Chaetodon auriga

Melon Grouper

Name: Melon Grouper

Order: Perciformes

Habitat: Marine

Scientific name: Cephalopholis melas

Melon Seed Shark

Name: Melon Seed Shark

Order: Squaliformes

Habitat: Marine

Scientific name: Isistius brasiliensis

Melon Swordtail

Name: Melon Swordtail

Order: Cyprinodontiformes

Habitat: Freshwater rivers and streams

Scientific name: Xiphophorus helleri

Melongena

Name: Melongena

Order: Neogastropoda

Habitat: Brackish waters (error: not a fish)

Scientific name: Melongena melongena

Menado Cardinalfish

Name: Menado Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogon menadensis

Mendal's Cichlid

Name: Mendal's Cichlid

Order: Perciformes

Habitat: Freshwater (Central America)

Scientific name: Thorichthys mendeli

Menidia

Name: Menidia

Order: Atheriniformes

Habitat: Brackish

Scientific name: Menidia menidia

Mentawai Rabbitfish

Name: Mentawai Rabbitfish

Order: Siganiformes

Habitat: Marine

Scientific name: Siganus spinus

Mentella Redfish

Name: Mentella Redfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Sebastes mentella

Menzies' Skate

Name: Menzies' Skate

Order: Rajiformes

Habitat: Marine

Scientific name: Bathyraja richardsoni

Merlin

Name: Merlin

Order: Perciformes

Habitat: Marine

Scientific name: Makaira mazara

Mermaid Fish

Name: Mermaid Fish

Order: Ophidiiformes

Habitat: Marine

Scientific name: Carapus bermudensis

Mermaidfish

Name: Mermaidfish

Order: Perciformes

Habitat: Marine

Scientific name: Plesiops coeruleolineatus

Merry Widow Livebearer

Name: Merry Widow Livebearer

Order: Cyprinodontiformes

Habitat: Freshwater (Central America)

Scientific name: Phallichthys quadripunctatus

Mesopelagic Dragonfish

Name: Mesopelagic Dragonfish

Order: Stomiiformes

Habitat: Marine

Scientific name: Photonectes gyrinus

Mesopotamian Spiny Eel

Name: Mesopotamian Spiny Eel

Order: Synbranchiformes

Habitat: Freshwater

Scientific name: Mastacembelus mastacembelus

Metric Bass

Name: Metric Bass

Order: Perciformes

Habitat: Freshwater

Scientific name: Macquaria ambigua

Mexican Blind Cave Fish

Name: Mexican Blind Cave Fish

Order: Characiformes

Habitat: Freshwater caves

Scientific name: Astyanax mexicanus

Mexican Blind Cavefish

Name: Mexican Blind Cavefish

Order: Characiformes

Habitat: Freshwater

Scientific name: Astyanax mexicanus

Mexican Cave Tetra

Name: Mexican Cave Tetra

Order: Characiformes

Habitat: Freshwater (Mexico)

Scientific name: Astyanax mexicanus (cave variant)

Mexican Cichlid

Name: Mexican Cichlid

Order: Perciformes

Habitat: Freshwater (Mexico)

Scientific name: Herichthys

Mexican Conger Eel

Name: Mexican Conger Eel

Order: Anguilliformes

Habitat: Marine

Scientific name: Conger oceanicus

Mexican Crowntail

Name: Mexican Crowntail

Order: Perciformes

Habitat: Freshwater

Scientific name: Betta edithae

Mexican Damselfish

Name: Mexican Damselfish

Order: Perciformes

Habitat: Marine

Scientific name: Stegastes rectifraenum

Mexican Gar

Name: Mexican Gar

Order: Lepisosteiformes

Habitat: Freshwater rivers and lakes

Scientific name: Atractosteus tropicus

Mexican Golden Trout

Name: Mexican Golden Trout

Order: Salmoniformes

Habitat: Freshwater

Scientific name: Oncorhynchus chrysogaster

Mexican Goodeid

Name: Mexican Goodeid

Order: Cyprinodontiformes

Habitat: Freshwater (Mexico)

Scientific name: Goodea atripinnis

Mexican Molly

Name: Mexican Molly

Order: Cyprinodontiformes

Habitat: Freshwater/Brackish (Americas)

Scientific name: Poecilia sphenops (wild variant)

Mexican Sailfin Molly

Name: Mexican Sailfin Molly

Order: Cyprinodontiformes

Habitat: Freshwater/Brackish (Mexico)

Scientific name: Poecilia velifera

Mexican Sawfish

Name: Mexican Sawfish

Order: Pristiformes

Habitat: Brackish/Marine

Scientific name: Pristis pectinata

Mexican Silverside

Name: Mexican Silverside

Order: Atheriniformes

Habitat: Freshwater

Scientific name: Chirostoma estor

Mexican Tetra

Name: Mexican Tetra

Order: Characiformes

Habitat: Freshwater caves and rivers

Scientific name: Astyanax mexicanus

Mexican Torpedo

Name: Mexican Torpedo

Order: Torpediniformes

Habitat: Marine

Scientific name: Torpedo californica

Michigan Madtom

Name: Michigan Madtom

Order: Siluriformes

Habitat: Freshwater

Scientific name: Noturus miurus

Micronesian Cardinalfish

Name: Micronesian Cardinalfish

Order: Perciformes

Habitat: Marine (Micronesia)

Scientific name: Apogonichthys ocellatus

Micronesian Grouper

Name: Micronesian Grouper

Order: Perciformes

Habitat: Marine reef

Scientific name: Epinephelus moultoni

Micronesian Parrotfish

Name: Micronesian Parrotfish

Order: Perciformes

Habitat: Marine (Micronesia)

Scientific name: Scarus microrhinos

Micronesian Surgeonfish

Name: Micronesian Surgeonfish

Order: Acanthuriformes

Habitat: Marine (Micronesia)

Scientific name: Acanthurus lineatus (regional variant)

Micronesian Triggerfish

Name: Micronesian Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Micronesia)

Scientific name: Rhinecanthus rectangulus (Micronesian variant)

Mid-Atlantic Ridge Rattail

Name: Mid-Atlantic Ridge Rattail

Order: Gadiformes

Habitat: Marine

Scientific name: Coryphaenoides profundicola

Midas Blenny

Name: Midas Blenny

Order: Blenniiformes

Habitat: Coral reefs

Scientific name: Ecsenius midas

Midas Cichlid

Name: Midas Cichlid

Order: Cichliformes

Habitat: Freshwater lakes in Central America

Scientific name: Amphilophus citrinellus

Midas Cichlid (Orange Morph)

Name: Midas Cichlid (Orange Morph)

Order: Perciformes

Habitat: Freshwater (Central America)

Scientific name: Amphilophus citrinellus (orange variant)

Midas Cichlid (Red Morph)

Name: Midas Cichlid (Red Morph)

Order: Perciformes

Habitat: Freshwater (Central America)

Scientific name: Amphilophus citrinellus (red variant)

Midnight Angelfish

Name: Midnight Angelfish

Order: Perciformes

Habitat: Coral reefs in the Indo-Pacific

Scientific name: Centropyge nox

Midnight Bass

Name: Midnight Bass

Order: Perciformes

Habitat: Freshwater rivers and streams

Scientific name: Micropterus coosae

Midnight Clownfish

Name: Midnight Clownfish

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Amphiprion percula (Melanistic variant)

Midnight Goby

Name: Midnight Goby

Order: Gobiiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Gobiodon rivulatus (dark variant)

Midnight Parrotfish

Name: Midnight Parrotfish

Order: Perciformes

Habitat: Coral reefs

Scientific name: Scarus coelestinus

Midnight Snapper

Name: Midnight Snapper

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Macolor macularis

Midnight Wrasse

Name: Midnight Wrasse

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Stethojulis albovittata

Midshipman

Name: Midshipman

Order: Batrachoidiformes

Habitat: Deep marine waters

Scientific name: Porichthys notatus

Midshipman (Plainfin)

Name: Midshipman (Plainfin)

Order: Batrachoidiformes

Habitat: Marine

Scientific name: Porichthys notatus

Midshipman (Speckled)

Name: Midshipman (Speckled)

Order: Batrachoidiformes

Habitat: Marine

Scientific name: Porichthys myriaster

Midshipman Fish

Name: Midshipman Fish

Order: Batrachoidiformes

Habitat: Marine

Scientific name: Porichthys notatus

Midwater Eelpout

Name: Midwater Eelpout

Order: Perciformes

Habitat: Marine

Scientific name: Pachycara pammelas

Midwater Fangtooth

Name: Midwater Fangtooth

Order: Stomiiformes

Habitat: Marine

Scientific name: Anoplogaster cornuta

Midwater Hagfish

Name: Midwater Hagfish

Order: Myxiniformes

Habitat: Marine

Scientific name: Eptatretus cirrhatus

Midwater Hatchetfish

Name: Midwater Hatchetfish

Order: Stomiiformes

Habitat: Marine

Scientific name: Argyropelecus hemigymnus

Midwater Lanternfish

Name: Midwater Lanternfish

Order: Myctophiformes

Habitat: Marine

Scientific name: Lampanyctus alatus

Midwater Ling

Name: Midwater Ling

Order: Gadiformes

Habitat: Marine

Scientific name: Molva molva

Midwater Loach

Name: Midwater Loach

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Botia dario

Midwater Octopus

Name: Midwater Octopus

Order: Octopodiformes

Habitat: Marine

Scientific name: Graneledone boreopacifica

Midwater Prowfish

Name: Midwater Prowfish

Order: Perciformes

Habitat: Marine

Scientific name: Pteraclis velifera

Midwater Snakefish

Name: Midwater Snakefish

Order: Aulopiformes

Habitat: Marine

Scientific name: Chauliodus sloani

Midwater Squirrelfish

Name: Midwater Squirrelfish

Order: Beryciformes

Habitat: Marine

Scientific name: Sargocentron spiniferum

Midwater Swallower

Name: Midwater Swallower

Order: Perciformes

Habitat: Marine

Scientific name: Chiasmodon niger

Midwater Viperfish

Name: Midwater Viperfish

Order: Stomiiformes

Habitat: Marine

Scientific name: Chauliodus macouni

Milford Perch

Name: Milford Perch

Order: Perciformes

Habitat: Freshwater

Scientific name: Micropterus salmoides

Milk Shark

Name: Milk Shark

Order: Carcharhiniformes

Habitat: Marine (Tropical Indo-Pacific)

Scientific name: Rhizoprionodon acutus

Milk Tetra

Name: Milk Tetra

Order: Characiformes

Habitat: Freshwater (South America)

Scientific name: Gymnocorymbus ternetzi (white variant)

Milkfish

Name: Milkfish

Order: Gonorynchiformes

Habitat: Marine/Brackish

Scientific name: Chanos chanos

Milkfish (Atlantic)

Name: Milkfish (Atlantic)

Order: Gonorynchiformes

Habitat: Marine/Brackish (Atlantic Ocean)

Scientific name: Chanos chanos atlanticus

Milkfish (Indonesian)

Name: Milkfish (Indonesian)

Order: Gonorynchiformes

Habitat: Marine/Brackish (Indonesia)

Scientific name: Chanos chanos indonesiensis

Milkfish (Pacific)

Name: Milkfish (Pacific)

Order: Gonorynchiformes

Habitat: Marine/Brackish (Pacific Ocean)

Scientific name: Chanos chanos pacificus

Milkfish Agressor

Name: Milkfish Agressor

Order: Perciformes

Habitat: Marine

Scientific name: Chanos chanos

Milkshark

Name: Milkshark

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Rhizoprionodon acutus

Millepora Blenny

Name: Millepora Blenny

Order: Perciformes

Habitat: Marine

Scientific name: Ecsenius midas

Millet Butterflyfish

Name: Millet Butterflyfish

Order: Perciformes

Habitat: Marine

Scientific name: Chaetodon miliaris

Miltfish

Name: Miltfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Mola mola

Mimic Blenny

Name: Mimic Blenny

Order: Blenniiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Plagiotremus phenax

Mimic Cardinalfish

Name: Mimic Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Gymnapogon philippinus

Mimic Filefish

Name: Mimic Filefish

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Paraluteres prionurus

Mimic Octopus

Name: Mimic Octopus

Order: Octopodiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Thaumoctopus mimicus

Mimic Sandperch

Name: Mimic Sandperch

Order: Perciformes

Habitat: Marine

Scientific name: Parapercis mimica

Mimic Surgeonfish

Name: Mimic Surgeonfish

Order: Perciformes

Habitat: Marine

Scientific name: Acanthurus pyroferus

Mimic Surgeonfish (Yellow Mimic)

Name: Mimic Surgeonfish (Yellow Mimic)

Order: Acanthuriformes

Habitat: Marine (Indo-Pacific)

Scientific name: Acanthurus pyroferus (juvenile)

Mimic Surgeonfish (Yellowbelly)

Name: Mimic Surgeonfish (Yellowbelly)

Order: Acanthuriformes

Habitat: Marine (Indo-Pacific)

Scientific name: Acanthurus triostegus (juvenile)

Mimic Tang

Name: Mimic Tang

Order: Acanthuriformes

Habitat: Marine

Scientific name: Acanthurus pyroferus

Mimic Tang (Kole Mimic)

Name: Mimic Tang (Kole Mimic)

Order: Acanthuriformes

Habitat: Marine (Central Pacific)

Scientific name: Ctenochaetus strigosus (juvenile)

Mimic Triggerfish

Name: Mimic Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Pseudobalistes fuscus

Mimic Wrasse

Name: Mimic Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Pseudojuloides cerasinus

Minbo Goby

Name: Minbo Goby

Order: Gobiiformes

Habitat: Freshwater

Scientific name: Glossogobius minbo

Mindanao Cardinalfish

Name: Mindanao Cardinalfish

Order: Perciformes

Habitat: Marine (Philippines)

Scientific name: Apogon mindanensis

Mindanao Goby

Name: Mindanao Goby

Order: Gobiiformes

Habitat: Freshwater

Scientific name: Pandaka pygmaea

Minerva Grouper

Name: Minerva Grouper

Order: Perciformes

Habitat: Marine

Scientific name: Epinephelus adscensionis

Miniature Goby

Name: Miniature Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Eviota pellucida

Miniature Triggerfish

Name: Miniature Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Sufflamen bursa

Minio Grouper

Name: Minio Grouper

Order: Perciformes

Habitat: Marine

Scientific name: Epinephelus miniata

Minnow

Name: Minnow

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Various Cyprinidae

Minnow (Bluntnose)

Name: Minnow (Bluntnose)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Pimephales notatus

Minnow (Brassy)

Name: Minnow (Brassy)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Hybognathus hankinsoni

Minnow (Common)

Name: Minnow (Common)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Phoxinus phoxinus

Minnow (Creek)

Name: Minnow (Creek)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Semotilus atromaculatus

Minnow (Fathead)

Name: Minnow (Fathead)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Pimephales promelas

Minnow (Golden Shiner)

Name: Minnow (Golden Shiner)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Notemigonus crysoleucas

Minnow (Leopard Dace)

Name: Minnow (Leopard Dace)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Rhinichthys falcatus

Minnow (Redfin)

Name: Minnow (Redfin)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Lythrurus umbratilis

Minnow (Rosyface)

Name: Minnow (Rosyface)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Notropis rubellus

Minnow (Silverjaw)

Name: Minnow (Silverjaw)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Ericymba buccata

Minnow (Spotfin)

Name: Minnow (Spotfin)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Cyprinella spiloptera

Minnow (Stone Roller)

Name: Minnow (Stone Roller)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Campostoma anomalum

Minnow (Striped Shiner)

Name: Minnow (Striped Shiner)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Luxilus chrysocephalus

Minnow (Suckermouth)

Name: Minnow (Suckermouth)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Phenacobius mirabilis

Minnow (Western Silvery)

Name: Minnow (Western Silvery)

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Hybognathus argyritis

Minor Mudskipper

Name: Minor Mudskipper

Order: Gobiiformes

Habitat: Brackish/Marine

Scientific name: Periophthalmus minutus

Minotaur Goby

Name: Minotaur Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Gobius minotaurus

Mint Blenny

Name: Mint Blenny

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Ecsenius minutus

Mint Grouper

Name: Mint Grouper

Order: Perciformes

Habitat: Marine

Scientific name: Epinephelus chlorostigma

Mioga Catfish

Name: Mioga Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Cranoglanis sinensis

Mirage Cardinalfish

Name: Mirage Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogonichthys ocellatus

Mirror Carp

Name: Mirror Carp

Order: Cypriniformes

Habitat: Freshwater lakes and rivers

Scientific name: Cyprinus carpio haematopterus

Miss Columbia Characin

Name: Miss Columbia Characin

Order: Characiformes

Habitat: Freshwater (South America)

Scientific name: Columbichthys sp.

Mississippi Alligator Gar

Name: Mississippi Alligator Gar

Order: Lepisosteiformes

Habitat: Freshwater (North America)

Scientific name: Atractosteus spatula (regional variant)

Mississippi Paddlefish

Name: Mississippi Paddlefish

Order: Acipenseriformes

Habitat: Freshwater

Scientific name: Polyodon spathula

Mississippi Sheepshead

Name: Mississippi Sheepshead

Order: Cypriniformes

Habitat: Freshwater (North America)

Scientific name: Pogonichthys macrolepidotus (misnomer for freshwater drum)

Mississippi Silverside

Name: Mississippi Silverside

Order: Atheriniformes

Habitat: Freshwater rivers and streams

Scientific name: Menidia audens

Missouri Chub

Name: Missouri Chub

Order: Cypriniformes

Habitat: Freshwater (North America)

Scientific name: Macrhybopsis gelida

Missouri Minnow

Name: Missouri Minnow

Order: Cypriniformes

Habitat: Freshwater (North America)

Scientific name: Phenacobius mirabilis

Missouri Ozark Cavefish

Name: Missouri Ozark Cavefish

Order: Percopsiformes

Habitat: Freshwater

Scientific name: Amblyopsis rosacea

Mitchell's Coralfish

Name: Mitchell's Coralfish

Order: Perciformes

Habitat: Marine

Scientific name: Chaetodon mitratus

Mitre Boxfish

Name: Mitre Boxfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Ostracion cubicus

Miura Blenny

Name: Miura Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Cirripectes miuraensis

Miyake's Dragonfish

Name: Miyake's Dragonfish

Order: Stomiiformes

Habitat: Marine

Scientific name: Bathophilus miyakeae

Miyako Dwarf Goby

Name: Miyako Dwarf Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Trimma miyakoense

Miyakojima Blenny

Name: Miyakojima Blenny

Order: Blenniiformes

Habitat: Marine

Scientific name: Ecsenius miyakojimensis

Mohr's Goby

Name: Mohr's Goby

Order: Gobiiformes

Habitat: Marine (Mediterranean Sea)

Scientific name: Gobius cobitis

Mojarra

Name: Mojarra

Order: Eupercaria

Habitat: Coastal marine and brackish waters

Scientific name: Gerreidae family

Mojarra (Atlantic)

Name: Mojarra (Atlantic)

Order: Perciformes

Habitat: Marine/Brackish (Western Atlantic)

Scientific name: Eucinostomus gula

Mojarra (Pacific)

Name: Mojarra (Pacific)

Order: Perciformes

Habitat: Marine/Brackish (Eastern Pacific)

Scientific name: Eucinostomus argenteus

Moki

Name: Moki

Order: Perciformes

Habitat: Coastal marine waters around New Zealand

Scientific name: Latridopsis ciliaris

Mokozan Bream

Name: Mokozan Bream

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Acanthopagrus latus

Mola

Name: Mola

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Various Molidae

Mola Mola

Name: Mola Mola

Order: Tetraodontiformes

Habitat: Open ocean temperate and tropical waters

Scientific name: Mola mola

Mola Mola (Ocean Sunfish)

Name: Mola Mola (Ocean Sunfish)

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Mola mola

Molas

Name: Molas

Order: Tetraodontiformes

Habitat: Open ocean temperate and tropical waters

Scientific name: Molidae family

Molave Snapper

Name: Molave Snapper

Order: Perciformes

Habitat: Marine neritic

Scientific name: Lutjanus decussatus

Molly

Name: Molly

Order: Cyprinodontiformes

Habitat: Freshwater

Scientific name: Poecilia sphenops

Molly Miller Blenny

Name: Molly Miller Blenny

Order: Blenniiformes

Habitat: Marine (Atlantic/Mediterranean)

Scientific name: Scartella cristata

Moluccan Cardinalfish

Name: Moluccan Cardinalfish

Order: Perciformes

Habitat: Marine

Scientific name: Apogon moluccensis

Mona Lisa Killifish

Name: Mona Lisa Killifish

Order: Cyprinodontiformes

Habitat: Freshwater

Scientific name: Aphyosemion monastyrskii

Monacanthidae Triggerfish

Name: Monacanthidae Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Tropical/Subtropical)

Scientific name: Monacanthidae

Monacanthus Filefish

Name: Monacanthus Filefish

Order: Tetraodontiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Monacanthus chinensis

Monaco Moray

Name: Monaco Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax monocondylus

Monarch Seafish

Name: Monarch Seafish

Order: Perciformes

Habitat: Deep ocean waters

Scientific name: Lampris guttatus

Money Goby

Name: Money Goby

Order: Gobiiformes

Habitat: Coral reefs

Scientific name: Priolepis semidoliata

Mongolian Fish

Name: Mongolian Fish

Order: Cypriniformes

Habitat: Freshwater (Mongolia)

Scientific name: Leuciscus mongolicus

Mongolian Grayling

Name: Mongolian Grayling

Order: Salmoniformes

Habitat: Freshwater

Scientific name: Thymallus brevirostris

Mongolian Redfin

Name: Mongolian Redfin

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Chanodichthys mongolicus

Mongolian Roach

Name: Mongolian Roach

Order: Cypriniformes

Habitat: Freshwater (Mongolia)

Scientific name: Rutilus rutilus lacustris

Mongolian Trout

Name: Mongolian Trout

Order: Salmoniformes

Habitat: Freshwater rivers and lakes in East Asia

Scientific name: Brachymystax lenok

Monkeyface Prickleback

Name: Monkeyface Prickleback

Order: Perciformes

Habitat: Marine intertidal

Scientific name: Cebidichthys violaceus

Monkfish

Name: Monkfish

Order: Lophiiformes

Habitat: Temperate and cold marine waters

Scientific name: Lophius piscatorius

Monkfish (American)

Name: Monkfish (American)

Order: Lophiiformes

Habitat: Marine (Western Atlantic)

Scientific name: Lophius americanus

Monkfish (Anglerfish)

Name: Monkfish (Anglerfish)

Order: Lophiiformes

Habitat: Marine

Scientific name: Lophius piscatorius

Monkfish (South African)

Name: Monkfish (South African)

Order: Lophiiformes

Habitat: Marine (Southeast Atlantic)

Scientific name: Lophius vomerinus

Mono

Name: Mono

Order: Perciformes

Habitat: Brackish/Marine (Indo-Pacific)

Scientific name: Monodactylus argenteus

Monocle Bream

Name: Monocle Bream

Order: Perciformes

Habitat: Marine

Scientific name: Scolopsis bilineata

Monodactylus Sebae

Name: Monodactylus Sebae

Order: Perciformes

Habitat: Marine/Brackish

Scientific name: Monodactylus sebae

Monolisk Fish

Name: Monolisk Fish

Order: Perciformes

Habitat: Marine/Brackish

Scientific name: Monodactylus argenteus

Monsieur Parrotfish

Name: Monsieur Parrotfish

Order: Perciformes

Habitat: Marine (Western Atlantic)

Scientific name: Scarus coeruleus

Montague's Sea Snail

Name: Montague's Sea Snail

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Liparis montagui

Montana Arctic Grayling

Name: Montana Arctic Grayling

Order: Salmoniformes

Habitat: Cold freshwater lakes and rivers

Scientific name: Thymallus arcticus

Montana Killifish

Name: Montana Killifish

Order: Cyprinodontiformes

Habitat: Freshwater

Scientific name: Fundulus notatus

Montebello Goby

Name: Montebello Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Amblygobius pholegma

Montego Bay Killifish

Name: Montego Bay Killifish

Order: Cyprinodontiformes

Habitat: Freshwater (Jamaica)

Scientific name: Rivulus rochfordi

Monterey Bay Shark

Name: Monterey Bay Shark

Order: Carcharhiniformes

Habitat: Marine (Eastern Pacific)

Scientific name: Apristurus brunneus

Monterey Flathead

Name: Monterey Flathead

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Parabembras curtus

Montrouzier's Moray

Name: Montrouzier's Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax montrouzieri

Moon Triggerfish

Name: Moon Triggerfish

Order: Tetraodontiformes

Habitat: Marine

Scientific name: Sufflamen bursa

Moon Wrasse

Name: Moon Wrasse

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Thalassoma lunare

Moon snail

Name: Moon snail

Order: Littorinimorpha

Habitat: Coastal marine (error: not a fish)

Scientific name: Naticidae family

Moon wrasse

Name: Moon wrasse

Order: Perciformes

Habitat: Marine reef

Scientific name: Thalassoma lunare

Mooneye

Name: Mooneye

Order: Hiodontiformes

Habitat: Freshwater rivers and lakes in North America

Scientific name: Hiodon tergisus

Moonfish

Name: Moonfish

Order: Carangiformes

Habitat: Marine

Scientific name: Various Meneidae

Moonfish (Atlantic)

Name: Moonfish (Atlantic)

Order: Carangiformes

Habitat: Marine (Western Atlantic)

Scientific name: Selene vomer

Moonfish (Caribbean)

Name: Moonfish (Caribbean)

Order: Carangiformes

Habitat: Marine (Western Atlantic)

Scientific name: Selene setapinnis

Moonfish (Pacific)

Name: Moonfish (Pacific)

Order: Carangiformes

Habitat: Marine (Eastern Pacific)

Scientific name: Vomer setapinnis

Moonfish (West African)

Name: Moonfish (West African)

Order: Carangiformes

Habitat: Marine (Eastern Atlantic)

Scientific name: Selene dorsalis

Moonfish Trevally

Name: Moonfish Trevally

Order: Perciformes

Habitat: Marine

Scientific name: Selene vomer

Moonlight Dragonet

Name: Moonlight Dragonet

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Synchiropus splendidus (variant)

Moonlight Gourami

Name: Moonlight Gourami

Order: Anabantiformes

Habitat: Freshwater (Southeast Asia)

Scientific name: Trichopodus microlepis

Moonlight Triggerfish

Name: Moonlight Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Tropical/Subtropical Oceans)

Scientific name: Canthidermis maculata

Moonlighter

Name: Moonlighter

Order: Perciformes

Habitat: Marine

Scientific name: Tilodon sexfasciatus

Moorish Idol

Name: Moorish Idol

Order: Perciformes

Habitat: Marine

Scientific name: Zanclus cornutus

Moray Cod

Name: Moray Cod

Order: Perciformes

Habitat: Marine (Southern Ocean)

Scientific name: Muraenolepis microps

Moray Conger

Name: Moray Conger

Order: Anguilliformes

Habitat: Marine

Scientific name: Muraenesox cinereus

Moray Eel

Name: Moray Eel

Order: Anguilliformes

Habitat: Marine

Scientific name: Various Muraenidae

Moray Goby

Name: Moray Goby

Order: Gobiiformes

Habitat: Marine/Brackish (Indo-Pacific)

Scientific name: Acentrogobius nebulosus

Moray Pike-Conger

Name: Moray Pike-Conger

Order: Anguilliformes

Habitat: Marine

Scientific name: Muraenesox bagio

Mordacia Lamprey

Name: Mordacia Lamprey

Order: Petromyzontiformes

Habitat: Freshwater/Anadromous

Scientific name: Mordacia mordax

Mordax Moray

Name: Mordax Moray

Order: Anguilliformes

Habitat: Marine (Eastern Pacific)

Scientific name: Gymnothorax mordax

Morelia Cod

Name: Morelia Cod

Order: Gadiformes

Habitat: Marine

Scientific name: Mora moro

Morena Eel

Name: Morena Eel

Order: Anguilliformes

Habitat: Marine (Indo-Pacific)

Scientific name: Gymnothorax kidako

Moreno's Pipefish

Name: Moreno's Pipefish

Order: Syngnathiformes

Habitat: Marine (Eastern Atlantic)

Scientific name: Syngnathus morenae

Moreton Bay Skate

Name: Moreton Bay Skate

Order: Rajiformes

Habitat: Marine

Scientific name: Raja whitleyi

Mori's Catfish

Name: Mori's Catfish

Order: Siluriformes

Habitat: Freshwater (Africa)

Scientific name: Clarias morii

Morning Glory Goby

Name: Morning Glory Goby

Order: Gobiiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Valenciennea strigata

Morning Goby

Name: Morning Goby

Order: Perciformes

Habitat: Marine

Scientific name: Amblygobius phalaena

Morning Star Damselfish

Name: Morning Star Damselfish

Order: Perciformes

Habitat: Coral reefs

Scientific name: Amblyglyphidodon aureus

Morning Star Dartfish

Name: Morning Star Dartfish

Order: Perciformes

Habitat: Marine (Western Pacific)

Scientific name: Ptereleotris micromaculata

Morning Star Goby

Name: Morning Star Goby

Order: Gobiiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Valenciennea puellaris

Morning Star Wrasse

Name: Morning Star Wrasse

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Cirrhilabrus exquisitus

Moroccan Sole

Name: Moroccan Sole

Order: Pleuronectiformes

Habitat: Marine (Eastern Atlantic)

Scientific name: Dicologlossa cuneata

Morone Bass

Name: Morone Bass

Order: Perciformes

Habitat: Freshwater/Anadromous

Scientific name: Morone saxatilis

Morosini's Goby

Name: Morosini's Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Gobius morosini

Morro Bay Lamprey

Name: Morro Bay Lamprey

Order: Petromyzontiformes

Habitat: Freshwater/Anadromous

Scientific name: Lampetra richardsoni

Mosaics Flounder

Name: Mosaics Flounder

Order: Pleuronectiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Pseudorhombus arsius

Mosasaur Tooth

Name: Mosasaur Tooth

Order: Mosasauridae

Habitat: Marine (Extinct)

Scientific name: Mosasaurus hoffmannii

Moses Perch

Name: Moses Perch

Order: Perciformes

Habitat: Marine

Scientific name: Lutjanus russellii

Mosquitofish

Name: Mosquitofish

Order: Cyprinodontiformes

Habitat: Freshwater

Scientific name: Gambusia affinis

Moss Blenny

Name: Moss Blenny

Order: Blenniiformes

Habitat: Marine (Indo-Pacific)

Scientific name: Cirripectes castaneus

Mossambicus Tilapia

Name: Mossambicus Tilapia

Order: Cichliformes

Habitat: Freshwater/Brackish

Scientific name: Oreochromis mossambicus

Mossback Sculpin

Name: Mossback Sculpin

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Clinocottus globiceps

Mosshead Warbonnet

Name: Mosshead Warbonnet

Order: Perciformes

Habitat: Marine

Scientific name: Chirolophis nugator

Mossy Rockfish

Name: Mossy Rockfish

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Sebastes moseri

Motoro Ray

Name: Motoro Ray

Order: Myliobatiformes

Habitat: Freshwater rivers in South America

Scientific name: Potamotrygon motoro

Mottled Eel

Name: Mottled Eel

Order: Anguilliformes

Habitat: Freshwater/Catadromous

Scientific name: Anguilla nebulosa

Mottled Flathead

Name: Mottled Flathead

Order: Scorpaeniformes

Habitat: Marine

Scientific name: Cociella punctata

Mottled Goby

Name: Mottled Goby

Order: Gobiiformes

Habitat: Marine

Scientific name: Gobius cobitis

Mottled Grouper

Name: Mottled Grouper

Order: Perciformes

Habitat: Marine

Scientific name: Mycteroperca rubra

Mottled Moray

Name: Mottled Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax vicinus

Mottled Sculpin

Name: Mottled Sculpin

Order: Scorpaeniformes

Habitat: Cold freshwater rivers and streams

Scientific name: Cottus bairdi

Mottled Snake Eel

Name: Mottled Snake Eel

Order: Anguilliformes

Habitat: Marine (Indo-Pacific)

Scientific name: Myrichthys pardalis

Mountain Barbel

Name: Mountain Barbel

Order: Cypriniformes

Habitat: Freshwater (Africa)

Scientific name: Barbus oreas

Mountain Catfish

Name: Mountain Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Amblydoras hancocki

Mountain Dwarf Cichlid

Name: Mountain Dwarf Cichlid

Order: Perciformes

Habitat: Freshwater (South America)

Scientific name: Apistogramma cacatuoides

Mountain Goby

Name: Mountain Goby

Order: Gobiiformes

Habitat: Freshwater

Scientific name: Sicyopus discordipinnis

Mountain Killifish

Name: Mountain Killifish

Order: Cyprinodontiformes

Habitat: Freshwater (Middle East)

Scientific name: Aphanius mento

Mountain Mullet

Name: Mountain Mullet

Order: Mugiliformes

Habitat: Freshwater/Brackish (Americas)

Scientific name: Agonostomus monticola

Mountain Suckermouth Catfish

Name: Mountain Suckermouth Catfish

Order: Siluriformes

Habitat: Freshwater (South America)

Scientific name: Ancistrus sp. (mountain variant)

Mountain Whitefish

Name: Mountain Whitefish

Order: Salmoniformes

Habitat: Freshwater

Scientific name: Prosopium williamsoni

Mouse Catfish

Name: Mouse Catfish

Order: Siluriformes

Habitat: Freshwater

Scientific name: Marakeli marleyi

Mouse Eel

Name: Mouse Eel

Order: Anguilliformes

Habitat: Marine (Indo-Pacific)

Scientific name: Dysomma anale

Mousefish

Name: Mousefish

Order: Lophiiformes

Habitat: Tropical and subtropical marine waters

Scientific name: Antennariidae family

Mouthbrooder

Name: Mouthbrooder

Order: Cichliformes

Habitat: Freshwater lakes and rivers

Scientific name: Various Cichlidae

Mozambique Blenny

Name: Mozambique Blenny

Order: Perciformes

Habitat: Marine

Scientific name: Blennius mozam

Mozambique Mouthbrooder

Name: Mozambique Mouthbrooder

Order: Perciformes

Habitat: Freshwater/Brackish

Scientific name: Oreochromis mossambicus

Mozambique Tilapia

Name: Mozambique Tilapia

Order: Cichliformes

Habitat: Freshwater/Brackish

Scientific name: Oreochromis mossambicus

Mud Bass

Name: Mud Bass

Order: Perciformes

Habitat: Freshwater lakes and rivers

Scientific name: Micropterus salmoides floridanus

Mud Bass (Florida strain)

Name: Mud Bass (Florida strain)

Order: Perciformes

Habitat: Freshwater lakes and rivers

Scientific name: Micropterus salmoides floridanus

Mud Blower

Name: Mud Blower

Order: Perciformes

Habitat: Marine reef

Scientific name: Rhinecanthus rectangulus

Mud Cod

Name: Mud Cod

Order: Gadiformes

Habitat: Freshwater

Scientific name: Lota lota

Mud Crab

Name: Mud Crab

Order: Decapoda

Habitat: Intertidal zones (error: not a fish)

Scientific name: Various species

Mud Dabber

Name: Mud Dabber

Order: Pleuronectiformes

Habitat: Marine/Brackish

Scientific name: Trinectes maculatus

Mud Dragonet

Name: Mud Dragonet

Order: Perciformes

Habitat: Marine (Indo-Pacific)

Scientific name: Discordipinna griessingeri

Mud Loach

Name: Mud Loach

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Misgurnus anguillicaudatus

Mud Marlin

Name: Mud Marlin

Order: Perciformes

Habitat: Marine

Scientific name: Tetrapturus angustirostris

Mud Moray

Name: Mud Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax griseus

Mud Perch

Name: Mud Perch

Order: Perciformes

Habitat: Freshwater (Australia)

Scientific name: Acanthoperca fluviatilis

Mud Sunfish

Name: Mud Sunfish

Order: Perciformes

Habitat: Freshwater

Scientific name: Acantharctus concentrus

Mud Trout

Name: Mud Trout

Order: Salmoniformes

Habitat: Cold freshwater streams and lakes

Scientific name: Salvelinus malma

Mud Worm Blenny

Name: Mud Worm Blenny

Order: Perciformes

Habitat: Marine

Scientific name: Xiphasia setifer

Mudfish (African)

Name: Mudfish (African)

Order: Protopteridae

Habitat: Freshwater (Africa)

Scientific name: Protopterus annectens

Mudskipper

Name: Mudskipper

Order: Gobiiformes

Habitat: Brackish/Marine

Scientific name: Various Oxudercinae

Mudskipper (Indian)

Name: Mudskipper (Indian)

Order: Gobiiformes

Habitat: Brackish/Marine (Indo-Pacific)

Scientific name: Periophthalmus modestus

Muffinfish

Name: Muffinfish

Order: Perciformes

Habitat: Deep marine waters (error: not starting with M for the name)

Scientific name: Epigonus telescopus

Mugil Shark

Name: Mugil Shark

Order: Carcharhiniformes

Habitat: Marine/Freshwater

Scientific name: Carcharhinus leucas

Mugiliformes Mullet

Name: Mugiliformes Mullet

Order: Mugiliformes

Habitat: Marine/Brackish/Freshwater (Worldwide)

Scientific name: Mugilidae

Mulatto Conger

Name: Mulatto Conger

Order: Anguilliformes

Habitat: Marine

Scientific name: Conger cinereus

Mulefish

Name: Mulefish

Order: Perciformes

Habitat: Marine/Brackish/Freshwater (Worldwide)

Scientific name: Mugil cephalus

Mullet Blenny

Name: Mullet Blenny

Order: Perciformes

Habitat: Marine

Scientific name: Blennius trigloides

Mullet Snapper

Name: Mullet Snapper

Order: Perciformes

Habitat: Marine neritic

Scientific name: Lutjanus sebae

Mullet Snapper (Pacific)

Name: Mullet Snapper (Pacific)

Order: Perciformes

Habitat: Marine (Eastern Pacific)

Scientific name: Lutjanus fuscescens

Multiband Wrasse

Name: Multiband Wrasse

Order: Perciformes

Habitat: Marine

Scientific name: Paracheilinus octotaenia

Multibar Angelfish

Name: Multibar Angelfish

Order: Perciformes

Habitat: Coral reefs

Scientific name: Paracentropyge multifasciata

Multicolor Angelfish

Name: Multicolor Angelfish

Order: Perciformes

Habitat: Marine

Scientific name: Centropyge multicolor

Multifasciatus Shell Dweller

Name: Multifasciatus Shell Dweller

Order: Perciformes

Habitat: Freshwater

Scientific name: Neolamprologus multifasciatus

Mumbai Moray

Name: Mumbai Moray

Order: Anguilliformes

Habitat: Marine (Indian Ocean)

Scientific name: Gymnothorax mumbai

Mummichog

Name: Mummichog

Order: Cyprinodontiformes

Habitat: Brackish/Freshwater

Scientific name: Fundulus heteroclitus

Mummichog Killifish

Name: Mummichog Killifish

Order: Cyprinodontiformes

Habitat: Brackish/Marine

Scientific name: Fundulus heteroclitus

Mummichog-like Killifish

Name: Mummichog-like Killifish

Order: Cyprinodontiformes

Habitat: Brackish/Freshwater

Scientific name: Fundulus confluentus

Mummified Goby

Name: Mummified Goby

Order: Gobiiformes

Habitat: Marine (Eastern Atlantic)

Scientific name: Gobius maderensis

Muraena Melanotis

Name: Muraena Melanotis

Order: Anguilliformes

Habitat: Marine

Scientific name: Muraena melanotis

Muraenesox Eel

Name: Muraenesox Eel

Order: Anguilliformes

Habitat: Marine

Scientific name: Muraenesox cinereus

Muraenidae Eel

Name: Muraenidae Eel

Order: Anguilliformes

Habitat: Marine (Eastern Pacific)

Scientific name: Muraena robusta

Muraenidae Snake Eel

Name: Muraenidae Snake Eel

Order: Anguilliformes

Habitat: Marine (Western Atlantic)

Scientific name: Myrichthys breviceps

Murdoch's Flounder

Name: Murdoch's Flounder

Order: Pleuronectiformes

Habitat: Marine

Scientific name: Ammotretis murdochii

Murine Eel

Name: Murine Eel

Order: Anguilliformes

Habitat: Marine (Indo-Pacific)

Scientific name: Muraenesox cinereus

Murray Cod

Name: Murray Cod

Order: Perciformes

Habitat: Freshwater rivers and lakes

Scientific name: Maccullochella peelii

Muskellunge

Name: Muskellunge

Order: Esociformes

Habitat: Freshwater lakes and rivers in North America

Scientific name: Esox masquinongy

Muskellunge (Purebred)

Name: Muskellunge (Purebred)

Order: Esociformes

Habitat: Freshwater (North America)

Scientific name: Esox masquinongy

Muskellunge (Tiger)

Name: Muskellunge (Tiger)

Order: Esociformes

Habitat: Freshwater lakes and rivers

Scientific name: Esox masquinongy x Esox lucius

Muskellunge Pike

Name: Muskellunge Pike

Order: Esociformes

Habitat: Freshwater lakes and rivers

Scientific name: Esox masquinongy

Musket Fish

Name: Musket Fish

Order: Esociformes

Habitat: Freshwater lakes and rivers (redundant)

Scientific name: Esox masquinongy

Musketel

Name: Musketel

Order: Acanthuriformes

Habitat: Marine (Indo-Pacific)

Scientific name: Acanthurus musketel

Mustache Triggerfish

Name: Mustache Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Eastern Pacific)

Scientific name: Balistes polylepis

Mustard Catfish

Name: Mustard Catfish

Order: Siluriformes

Habitat: Freshwater rivers in South America

Scientific name: Leiarius marmoratus

Mustard Eel

Name: Mustard Eel

Order: Anguilliformes

Habitat: Freshwater/Brackish

Scientific name: Anguilla rostrata

Mustelid Shark

Name: Mustelid Shark

Order: Carcharhiniformes

Habitat: Coastal temperate marine waters

Scientific name: Mustelus mustelus

Mustelus Glaucus

Name: Mustelus Glaucus

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Mustelus griseus

Mustelus Manazo

Name: Mustelus Manazo

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Mustelus manazo

Muturu

Name: Muturu

Order: Mormyriformes

Habitat: Freshwater

Scientific name: Mormyrops anguilloides

Muzar Shark

Name: Muzar Shark

Order: Carcharhiniformes

Habitat: Marine

Scientific name: Carcharhinus obscurus

Muzzle Moray

Name: Muzzle Moray

Order: Anguilliformes

Habitat: Marine

Scientific name: Gymnothorax miliaris

Myaka

Name: Myaka

Order: Cichliformes

Habitat: Freshwater

Scientific name: Myaka myaka

Myanmar Barb

Name: Myanmar Barb

Order: Cypriniformes

Habitat: Freshwater (Myanmar)

Scientific name: Dawkinsia filamentosus

Myanmar Danio

Name: Myanmar Danio

Order: Cypriniformes

Habitat: Freshwater

Scientific name: Danio kyathit

Myanmar Hillstream Loach

Name: Myanmar Hillstream Loach

Order: Cypriniformes

Habitat: Freshwater (Myanmar)

Scientific name: Schistura myaemai

Myanmar Rasbora

Name: Myanmar Rasbora

Order: Cypriniformes

Habitat: Freshwater rivers and streams

Scientific name: Rasbora myersi

Myanmar Spotted Catfish

Name: Myanmar Spotted Catfish

Order: Siluriformes

Habitat: Freshwater (Myanmar)

Scientific name: Mystus vittatus

Myctophid Fish

Name: Myctophid Fish

Order: Myctophiformes

Habitat: Marine

Scientific name: Myctophum punctatum

Mystery Snail

Name: Mystery Snail

Order: Architaenioglossa

Habitat: Freshwater (error: not a fish)

Scientific name: Pomacea bridgesii

Mystic Triggerfish

Name: Mystic Triggerfish

Order: Tetraodontiformes

Habitat: Marine (Western Pacific)

Scientific name: Rhinecanthus abyssus

Mystus Catfish

Name: Mystus Catfish

Order: Siluriformes

Habitat: Freshwater rivers and streams in Asia

Scientific name: Mystus spp.

NameOrderHabitatScientific name
MackerelScombriformesMarine temperate and subtropical watersScomber scombrus
Mackerel ScadPerciformesMarine pelagicDecapterus macarellus
Mackerel SharkLamniformesOpen ocean temperate and tropical watersLamnidae family
Mackerel Shark (Atlantic)LamniformesMarine (North Atlantic)Lamna nasus
Mackerel Shark (Pacific)LamniformesMarine (North Pacific)Lamna ditropis
Mackerel TunaScombriformesTropical and subtropical marine watersEuthynnus affinis
Madacascar CichlidCichliformesFreshwaterParatilapia polleni
Madagascar RainbowfishAtheriniformesFreshwater (Madagascar)Bedotia madagascariensis
Madeira RayMyliobatiformesMarine benthicRaja undulata
Madhya Pradesh CatfishSiluriformesFreshwaterRita rita
Madidi CatfishSiluriformesFreshwaterPimelodus madinensis
MadtomSiluriformesFreshwater rivers and streams in North AmericaNoturus spp.
Madtom (Carolina)SiluriformesFreshwaterNoturus furiosus
Madtom (Frecklebelly)SiluriformesFreshwaterNoturus munitus
Madtom (Mountain)SiluriformesFreshwaterNoturus eleutherus
Madtom (Northern)SiluriformesFreshwaterNoturus stigmosus
Madtom (Piedmont)SiluriformesFreshwaterNoturus baileyi
Madtom (Slender)SiluriformesFreshwaterNoturus exilis
Madtom (Smoky)SiluriformesFreshwaterNoturus baileyi
Madtom (Speckled)SiluriformesFreshwaterNoturus leptacanthus
Madtom (Stonecat)SiluriformesFreshwaterNoturus flavus
Madtom (Tadpole)SiluriformesFreshwaterNoturus gyrinus
Madtom (Yellowfin)SiluriformesFreshwaterNoturus flavipinnis
Madtom CatfishSiluriformesFreshwater (North America)Noturus
Magnificent DartfishPerciformesMarine (Indo-Pacific)Nemateleotris magnifica
Magnificent RabbitfishSiganiformesMarine (Indo-Pacific)Siganus magnificus
Magnificent RasboraCypriniformesFreshwater rivers and streamsRasbora borapetensis
Magoeba TilapiaCichliformesFreshwaterOreochromis macrochir
Magpie Fairy WrassePerciformesMarine (Pacific Ocean)Cirrhilabrus aquamarinus
Maguindanao TilapiaCichliformesFreshwaterOreochromis urolepis
Mahabalipuram DragonetPerciformesMarine (Indian Ocean)Dragonetidae
Mahi Mahi (Blue)CarangiformesMarine (Tropical/Subtropical Oceans)Coryphaena hippurus (color variant)
Mahi-mahiCarangiformesOpen ocean tropical and subtropical watersCoryphaena hippurus
MahimahiCarangiformesOpen ocean tropical and subtropical watersCoryphaena hippurus
Mahogany SnapperPerciformesMarineLutjanus mahogani
MahseerCypriniformesFreshwater rivers and lakesTor tor
Maiden Coral TroutPerciformesCoral reefsPlectropomus maculatus
Makaira MarlinIstiophoriformesOpen ocean tropical and temperate watersMakaira spp.
Mako SharkLamniformesOpen ocean temperate and tropical watersIsurus oxyrinchus
MakondeSiluriformesFreshwater rivers and lakesSchilbe mystus
Malabar BatfishPerciformesMarine (Indo-Pacific)Platax teira
Malabar DanioCypriniformesFreshwaterDevario malabaricus
Malabar DottybackPerciformesMarine (Indian Ocean)Pseudochromis malabaricus
Malabar GrouperPerciformesMarineEpinephelus malabaricus
Malabar Hill TroutCypriniformesFreshwater (India)Garra malabarica
Malabar Mud SkipperGobiiformesBrackish/Marine (Southeast Asia)Periophthalmus malaccensis
Malabar SnakeheadPerciformesFreshwater (India)Channa malabarica
Malabar SnapperPerciformesMarineLutjanus malabaricus
Malabar SolePleuronectiformesBrackish/MarineBrachirus orientalis
Malabar Spinner SharkCarcharhiniformesMarineCarcharhinus sorrah
Malabar WhiptailPerciformesMarine (Indo-Pacific)Pentapodus bifasciatus
Malawi CichlidCichliformesFreshwaterVarious Cichlidae
Malawi Crab-EaterPerciformesFreshwater (Lake Malawi)Cynotilapia afra (Malawi variant)
Malawi Eye-BiterPerciformesFreshwater (Lake Malawi)Dimidiochromis compressiceps
Malawi EyebiterCichliformesFreshwaterDimidiochromis compressiceps
Malawi Hawk CichlidPerciformesFreshwater (Lake Malawi)Nimbochromis livingstonii
Malawi MormyridMormyriformesFreshwater (Lake Malawi)Mormyrus longirostris
Malawi PerchCichliformesFreshwaterHaplochromis livingstonii
Malawi SardineClupeiformesFreshwaterEngraulicypris sardella
Malawi TilapiaCichliformesFreshwaterOreochromis shiranus
Malayan Bala SharkCypriniformesFreshwater (Southeast Asia)Balantiocheilos melanopterus (regional variant)
Malayan Clown LoachCypriniformesFreshwater (Southeast Asia)Chromobotia macracanthus (regional variant)
Malayan GlassfishPerciformesFreshwater (South Asia)Chanda nama
Malayan Leaf FishPerciformesFreshwater (Southeast Asia)Nandus nebulosus
Malayan LeaffishPerciformesFreshwaterNandus nebulosus
Malayan MudskipperGobiiformesBrackish/Marine intertidalPeriophthalmus novemradiatus
Malayan ScatPerciformesBrackish and marine watersScatophagus argus
Malayan ToadfishBatrachoidiformesMarine/BrackishBatrachomoeus trispinosus
Malcoha BlennyBlenniiformesMarineEcsenius malcolmi
Maldive AnemonefishPerciformesMarineAmphiprion nigripes
Maldive ButterflyfishPerciformesMarineChaetodon xanthurus
Maldive GrubfishPerciformesMarineParapercis alboguttata
Maldive Napoleon WrassePerciformesMarineCheilinus undulatus
Maldive SpinefootSiganiformesMarineSiganus luridus
Maldive TriggerfishTetraodontiformesMarineRhinecanthus lunula
Maldive TriplefinBlenniiformesMarineEnneapterygius niue
Maldivian AnemonefishPerciformesMarineAmphiprion nigripes
Malebo PufferfishTetraodontiformesFreshwaterTetraodon mbu
Maledan HalfbeakBeloniformesMarine (Indo-West Pacific)Hyporhamphus maledan
Mali TriggerfishTetraodontiformesMarine (Eastern Atlantic)Balistes mali
Malini's PipefishSyngnathiformesMarine (Red Sea)Syngnathus malini
Malleate Worm EelAnguilliformesMarineMuraenichthys gymnotus
Malpe SnapperPerciformesMarine neriticLutjanus malabaricus
Malpolon BatrachusLophiiformesMarine (Mediterranean Sea)Malpolon batrachus
Maltese RayMyliobatiformesMarine (Mediterranean Sea)Raja undulata
Mamba MorayAnguilliformesMarineGymnothorax mambus
Mami WatafishCharaciformesFreshwaterHydrocynus brevis
Man-of-War FishPerciformesMarine (Cosmopolitan)Nomeus gronovii
Manchurian PerchPerciformesFreshwaterSiniperca chuatsi
Manchurian TroutSalmoniformesFreshwaterBrachymystax lenok tsinlingensis
Mandalay Clown LoachCypriniformesFreshwaterBotia kubotai
Mandarin Dogface PufferTetraodontiformesMarineArothron meleagris
Mandarin DogfishSqualiformesDeep marine watersCirrhigaleus barbifer
Mandarin DragonetPerciformesMarine (Western Pacific)Synchiropus splendidus
MandarinfishSyngnathiformesCoral reefs in the Indo-PacificSynchiropus splendidus
Mandarinfish (Green)SyngnathiformesMarineSynchiropus splendidus
Mandarinfish (Red)SyngnathiformesMarineSynchiropus rubriceps
Maneater SharkCarcharhiniformesMarine (Cosmopolitan)Carcharodon carcharias
Maned BlennyBlenniiformesMarineCirripectes variolosus
Manganese BlennyBlenniiformesMarine (Indo-Pacific)Salarias ramosus
MangarCypriniformesFreshwater (Indian Subcontinent)Gibelion catla
Mangrove CardinalfishPerciformesMarine (Indo-Pacific)Sphaeramia nematoptera (mangrove variant)
Mangrove JackPerciformesMarine/BrackishLutjanus argentimaculatus
Mangrove KillifishCyprinodontiformesBrackish/Freshwater (Americas)Kryptolebias marmoratus
Mangrove PerchPerciformesMarine/Brackish (Indo-Pacific)Lutjanus calcarifer (mangrove variant)
Mangrove Red SnapperPerciformesMarine/BrackishLutjanus argentimaculatus
Mangrove RivulusCyprinodontiformesMangrove swampsKryptolebias marmoratus
Mangrove SnapperPerciformesBrackish/MarineLutjanus griseus
Manila SeahorseSyngnathiformesMarineHippocampus kuda
ManiniPerciformesMarineAcanthurus triostegus
ManjuariLepisosteiformesFreshwater rivers and lakesAtractosteus tristoechus
Mann's SharkCarcharhiniformesMarineCarcharhinus mannii
Manta RayMyliobatiformesOpen ocean tropical and subtropical watersMobulidae family
Many-Barred GruntPerciformesMarinePomadasys multimaculatus
Many-Spotted BlennyPerciformesMarineXiphasia matsubarai
Many-Spotted TobyTetraodontiformesMarineCanthigaster solandri
Many-banded ArcherfishPerciformesBrackish and freshwaterToxotes polylepis
Many-banded PipefishSyngnathiformesMarine (Indo-Pacific)Doryrhamphus multiannulatus
Many-barred Sand DiverPerciformesMarine (Indo-Pacific)Trichonotus halstead
Many-eyed Dwarf GobyGobiiformesMarine (Western Pacific)Trimma okinawae
Many-eyed LizardfishAulopiformesMarineSynodus lacertinus
Many-horned CowfishTetraodontiformesMarineLactoria cornuta
Many-lined CardinalfishPerciformesMarine (Western Pacific)Apogon multilineatus
Many-lined SweetlipsPerciformesMarinePlectorhinchus multilineatus
Many-spined GobyGobiiformesMarineBathygobius rubropunctatus
Many-spined SeahorseSyngnathiformesMarine (Western Pacific)Hippocampus multispinosus
Many-spotted GobyGobiiformesMarine (Indo-Pacific)Amblygobius phalaena
Many-spotted SweetlipsPerciformesCoral reefsPlectorhinchus chaetodonoides
Maori WrassePerciformesMarineOxycheilinus unifasciatus
Map PufferfishTetraodontiformesMarineArothron mappa
Maps AngelfishPerciformesMarine (Indo-Pacific)Pomacanthus maculosus
MaptunaScombriformesMarine (Worldwide)Auxis rochei
Maraena CiscoSalmoniformesFreshwaterCoregonus maraena
MaraudichthysPerciformesMarineMaraudichthys spinosus
Marble CatfishSiluriformesFreshwater (Africa)Pareutropius debauwi
Marble GobyGobiiformesFreshwater and brackish watersOxyeleotris marmorata
Marble TroutSalmoniformesFreshwater rivers and lakesSalmo marmoratus
Marbled BlennyBlenniiformesMarine (Indo-Pacific)Entomacrodus marmoratus
Marbled Blind GobyGobiiformesMarineTyphlogobius californiensis
Marbled CardinalfishPerciformesMarine (Indo-Pacific)Sphaeramia orbicularis
Marbled Cat SharkCarcharhiniformesMarine (Indo-West Pacific)Atelomycterus marmoratus
Marbled CatfishSiluriformesFreshwater rivers and lakesSilurus glanis
Marbled Catfish (Neotropical)SiluriformesFreshwaterPimelodus maculatus
Marbled ConefishPerciformesMarineCongrogadus subducens
Marbled Convict BlennyPerciformesMarinePholidichthys leucotaenia
Marbled Coral GrouperPerciformesMarine (Western Pacific)Plectropomus maculatus
Marbled CrocodilefishScorpaeniformesMarineCymbacephalus marmoratus
Marbled DragonetPerciformesMarine (Indo-Pacific)Synchiropus marmoratus
Marbled EelAnguilliformesFreshwater/BrackishAnguilla marmorata
Marbled Electric RayTorpediniformesMarineTorpedo marmorata
Marbled FlatheadScorpaeniformesMarine (Western Pacific)Platycephalus marmoratus
Marbled FlounderPleuronectiformesMarine (Northwest Pacific)Pleuronectes yokohamae
Marbled GoatfishPerciformesMarineUpeneus tragula
Marbled GobyGobiiformesFreshwaterOxyeleotris marmorata
Marbled GrouperPerciformesMarine (Indo-Pacific)Epinephelus fuscoguttatus
Marbled GrubfishPerciformesMarineParapercis allporti
Marbled HeadstanderCharaciformesFreshwaterAbramites hypselonotus
Marbled Honeycomb MorayAnguilliformesMarineGymnothorax favagineus
Marbled Knife FishGymnotiformesFreshwater (South America)Gymnotus marmoratus
Marbled LungfishCeratodontiformesFreshwater lakes and rivers in AfricaProtopterus aethiopicus
Marbled MorayAnguilliformesMarineUropterygius marmoratus
Marbled Moray EelAnguilliformesMarine (Indo-Pacific)Uropterygius marmoratus
Marbled MouthbrooderPerciformesFreshwaterPseudocrenilabrus philander
Marbled New World GobyGobiiformesMarineArtedius corallinus
Marbled ParrotfishPerciformesMarineLeptoscarus vaigiensis
Marbled Pike CichlidPerciformesFreshwater (South America)Crenicichla marmorata
Marbled RockcodPerciformesMarineEpinephelus fuscoguttatus
Marbled RockskipperBlenniiformesMarine (Indo-Pacific)Istiblennius marmoratus
Marbled Sailfin BlennyBlenniiformesMarineCirripectes alleni
Marbled SleeperGobiiformesFreshwater/Brackish (Southeast Asia)Oxyeleotris marmorata
Marbled Sleepy CodPerciformesFreshwaterOxyeleotris lineolata
Marbled SolePleuronectiformesMarine (Northwest Pacific)Pleuronectes schrenki
Marbled SolefishPleuronectiformesMarine (Northeast Atlantic)Pleuronectes flesus
Marbled StargazerPerciformesMarine (Indo-Pacific)Uranoscopus marmoratus
Marbled SwellsharkCarcharhiniformesMarine benthicCephaloscyllium trigonocephalum
Marbled ToadfishBatrachoidiformesMarineBatrachoides gilberti
Marbled Torpedo RayTorpediniformesMarineTorpedo marmorata
Marbled WrassePerciformesMarineChoerodon marmoratus
Marblehead BlennyBlenniiformesMarinePhololis ornata
Marco Polo CichlidPerciformesFreshwaterAulonocara stuartgranti
Mardi Gras BlennyBlenniiformesMarineEcsenius yaeyamaensis
Mardi Gras WrassePerciformesMarineHalichoeres burekae
Maren's PipefishSyngnathiformesMarineCorythoichthys marenarum
Margarita GobyGobiiformesMarine (Eastern Pacific)Elacatinus puncticulatus
Margarita RockfishPerciformesMarineSebastes notius
Margarite ScorpionfishScorpaeniformesMarineScorpaena margarita
MargatePerciformesMarineHaemulon album
MargayPerciformesFreshwater (Africa)Labeobarbus margaritarius
Margined FlatheadScorpaeniformesMarinePlatycephalus indicus
Margined GrenadierGadiformesMarineCoelorinchus marginatus
Margined PerchPerciformesMarineParacanthopoma margined
Margined ScorpionfishScorpaeniformesMarine (Atlantic Ocean)Scorpaena histrio
Mariana SnailfishPerciformesExtreme deep sea trenchesPseudoliparis swirei
Marianas AnglerfishLophiiformesMarineLophichthys spinosus
Marianas DragonetPerciformesMarineCallionymus marleyi
Marianas ViperfishStomiiformesMarineChauliodus pammelas
Marine BettaPerciformesMarine (Indo-Pacific)Calloplesiops altivelis
Marine GoldfishPerciformesMarineApogon apogonoides
Marine HatchetfishStomiiformesDeep marine watersSternoptychidae family
Marion ScabbardfishPerciformesMarineAphanopus mikhailini
Marked RockfishScorpaeniformesMarineSebastes notius
MarlinIstiophoriformesOpen ocean tropical and temperate watersMakaira nigricans
Marlin (Black)IstiophoriformesMarineMakaira indica
Marlin (Blue)IstiophoriformesMarineMakaira nigricans
Marlin (Striped)IstiophoriformesMarineKajikia audax
Marlin (White)IstiophoriformesMarineKajikia albida
Marlin-spike CongerAnguilliformesMarine (Eastern Atlantic)Gnathophis mystax
Marlinspike FishAulopiformesMarineMalacosteus niger
Marlinspiker FishOphidiiformesMarineMacrosmia phalacra
Marmorata ParrotfishPerciformesMarine (Indo-Pacific)Scarus marmoratus
Marmorated SculpinScorpaeniformesFreshwaterCottus kessleri
Marmorated SpinefootSiganiformesMarineSiganus rivulatus
Marquesan AnthiasPerciformesMarine (Marquesas Islands)Pseudanthias pictilis
Marquesan GrouperPerciformesMarine (Marquesas Islands)Epinephelus irrorata
Marquesan MorayAnguilliformesMarineGymnothorax marquesensis
Marquesan SquirrelfishBeryciformesMarineSargocentron marleyi
Marquesan SwellsharkCarcharhiniformesMarine (Eastern Pacific)Cephaloscyllium marquesanum
Marsbar LionfishScorpaeniformesMarinePterois marsupialis
Marshall Island PipefishSyngnathiformesMarineChoeroichthys sculptus
Marshall Islands GobyGobiiformesMarineTrimma stobbsi
Masai ToothcarpCyprinodontiformesFreshwaterNothobranchius kilomberoensis
Mascarene FlyingfishBeloniformesMarineCheilopogon nigricans
Mascarene GruntPerciformesMarinePomadasys maculatus
Mascarene SergeantPerciformesMarineAbudefduf vaigiensis
Masked AngelfishPerciformesMarineGenicanthus personatus
Masked BarbfishScorpaeniformesMarineScorpaena maderensis
Masked BlennyBlenniiformesMarineBlennius ocellaris
Masked DartfishPerciformesMarinePtereleotris randalli
Masked Dwarf GobyGobiiformesMarine (Western Pacific)Trimma anaima
Masked FilefishTetraodontiformesMarine (Indo-Pacific)Oxymonacanthus longirostris (variant)
Masked GobyGobiiformesMarineCoryphopterus personatus
Masked MorayAnguilliformesMarineCallechelys marmorata
Masked OwlfishAulopiformesMarineScopelosaurus harryi
Masked ParrottfishPerciformesMarineScarus spinosus
Masked PufferTetraodontiformesMarineArothron diadematus
Masked RabbitfishPerciformesMarineSiganus puellus
Masked SandperchPerciformesMarineParapercis rubromaculata
Masked SwellsharkCarcharhiniformesMarine (Western Pacific)Cephaloscyllium speccum
Masked TobyTetraodontiformesMarine (Indo-Pacific)Canthigaster valentini (variant)
Masked TriggerfishTetraodontiformesMarine (Indo-Pacific)Sufflamen fraenatum
Masked WrassePerciformesMarineCoris gaimard
Massasauga RattlesnakeSquamataWetlands and grasslands (error: not a fish)Sistrurus catenatus
Masu SalmonSalmoniformesFreshwater/MarineOncorhynchus masou
Masu TroutSalmoniformesFreshwater/AnadromousOncorhynchus masou
Mata GobyGobiiformesMarineGobiodon atrangulatus
MatamataCharaciformesFreshwaterMylossoma duriventre
Matamata CatfishSiluriformesFreshwaterPlatystacus cotylephorus
MauliganaPerciformesMarineScomberoides tol
Mauritanian HakeGadiformesMarineMerluccius senegalensis
Mauritanian RazorfishPerciformesMarineCentriscops humerosus
Mauritian AngelfishPerciformesDeep reefs of MauritiusApolemichthys arcuatus
Mauritian ButterflyfishPerciformesMarine (Western Indian Ocean)Chaetodon marleyi
Mauritian DamselfishPerciformesMarine (Indian Ocean)Pomacentrus mauritiensis
Mauritian PipefishSyngnathiformesMarine (Indian Ocean)Syngnathus mauritianus
Mauritian TriggerfishTetraodontiformesMarineBalistes mauritianus
Mauritius CardinalfishPerciformesMarineApogonichthys brachygrammus
Mauritius MorayAnguilliformesMarine reefGymnothorax mauritianus
Mauve StingerGymnotiformesFreshwaterEigenmannia virescens
Maxi-MinnowCypriniformesFreshwaterRhynchocypris oxycephalus
Maxwell's PipefishSyngnathiformesMarine (Western Australia)Syngnathus maxwelli
Maya CichlidCichliformesFreshwaterVieja maculicauda
Mayan CatfishSiluriformesFreshwaterRhamdia guatemalensis
Mayan CichlidCichliformesFreshwater/BrackishCichlasoma urophthalmus
Mayan GoodeidCyprinodontiformesFreshwater (Mexico)Allodontichthys hubbsi
Mayan SweeperPerciformesMarine (Western Atlantic)Pempheris schomburgkii
Mazzarella's DragonfishStomiiformesMarineBathophilus mazzarellai
MeagrePerciformesMarineArgyrosomus regius
MedakaBeloniformesFreshwaterOryzias latipes
Medaka RicefishBeloniformesFreshwaterOryzias latipes
Mediterranean AnglerfishLophiiformesMarineLophius piscatorius
Mediterranean BarracudaScombriformesMediterranean SeaSphyraena viridensis
Mediterranean BlennyBlenniiformesMarine (Mediterranean Sea)Blennius ocellaris
Mediterranean CardinalfishPerciformesMarineApogon imberbis
Mediterranean ChromisPerciformesMarineChromis chromis
Mediterranean DamselfishPerciformesMarine (Mediterranean Sea)Chromis chromis
Mediterranean FanfishPerciformesMarinePteractea coenei
Mediterranean FlyingfishBeloniformesMarineCheilopogon heterurus
Mediterranean GobyGobiiformesMarineGobius niger
Mediterranean Goldband SnipefishSyngnathiformesMarineMacroramphosus scolopax
Mediterranean Horse MackerelPerciformesMarineTrachurus mediterraneus
Mediterranean MorayAnguilliformesMarineMuraena helena
Mediterranean NeedlefishBeloniformesMarineBelone belone
Mediterranean ParrotfishPerciformesMarine (Mediterranean Sea)Sparisoma cretense
Mediterranean PearlfishOphidiiformesMarineCarapus acus
Mediterranean Picked DogfishSqualiformesMarineSqualus blainville
Mediterranean PikeEsociformesFreshwaterEsox lucius
Mediterranean PorgyPerciformesMarineSparus aurata
Mediterranean Rainbow WrassePerciformesMarineCoris julis
Mediterranean Red MulletPerciformesMarine (Mediterranean Sea)Mullus surmuletus
Mediterranean Sand SmeltAtheriniformesMarineAtherina boyeri
Mediterranean ScorpionfishScorpaeniformesMarineScorpaena scrofa
Mediterranean ShadClupeiformesBrackish/FreshwaterAlosa agone
Mediterranean SolePleuronectiformesMarineSolea solea
Mediterranean SpearfishPerciformesMarineTetrapturus belone
Mediterranean Spiny DogfishSqualiformesMarineSqualus acanthias
Mediterranean Spotted RayMyliobatiformesMarine (Mediterranean Sea)Raja miraletus
Mediterranean StargazerPerciformesMarineUranoscopus scaber
Mediterranean StonefishScorpaeniformesMarineSynanceia verrucosa
Mediterranean Striped GobyGobiiformesMarineGobius vittatus
Mediterranean SwellsharkCarcharhiniformesMarineCephaloscyllium stellare
Mediterranean TripodfishAulopiformesMarineBathypterois mediterraneus
Mediterranean Undulate RayRajiformesMarineRaja undulata
Mediterranean WrassePerciformesMarineSymphodus mediterraneus
Medusa FishPerciformesMarine (Indo-Pacific)Psenes arafurensis
Meek's CichlidCichliformesFreshwaterThorichthys meeki
Meeker's GobyGobiiformesMarineEviota meeki
Megamouth SharkLamniformesDeep ocean watersMegachasma pelagios
MegatronCharaciformesFreshwater rivers (error: not a fish)Megaleporinus obtusidens
Meiacanthus BlennyBlenniiformesMarine (Indo-Pacific)Meiacanthus
Mekong BarbCypriniformesFreshwater (Mekong River basin)Hypsibarbus pierrei
Mekong EelAnguilliformesFreshwater/Brackish (Mekong River basin)Anguilla moolen
Mekong Giant BarbCypriniformesFreshwater (Mekong River basin)Catlocarpio siamensis
Mekong Giant CatfishSiluriformesFreshwaterPangasianodon gigas
Mekong RayMyliobatiformesFreshwater (Southeast Asia)Himantura polylepis (Mekong population)
Mekong SharkCarcharhiniformesFreshwater/Brackish (Southeast Asia)Glyphis gangeticus (Mekong population)
Mekong Shark CatfishSiluriformesFreshwaterPangasius hypophthalmus
MelanatidaePerciformesFreshwater rivers (error: not a fish)Melanatidae family
Melaned AnglerLophiiformesMarineMelanocetus johnsonii
Melanesian ArcherfishPerciformesFreshwater/BrackishToxotes oligolepis
Melanesian CardinalfishPerciformesMarineApogonichthys melas
Melanesian DamselfishPerciformesMarine (Western Pacific)Pomacentrus melanesiae
Melanesian SharkCarcharhiniformesMarineCarcharhinus amblyrhynchoides
Melanistic DamselfishPerciformesMarine (Indo-Pacific)Stegastes nigricans (dark morph)
MelanopareiaCharaciformesFreshwater (South America)Melanopareia torquata
Melanotaenia RainbowfishAtheriniformesFreshwater (Australia)Melanotaenia duboulayi
Melanurus WrassePerciformesMarineHalichoeres melanurus
Melbourne AnglerfishLophiiformesMarineRhynchocera melbourneensis
Melbourne SkateRajiformesMarine (Southeastern Australia)Dipturus whitleyi
Melichthys TriggerfishTetraodontiformesMarineMelichthys niger
Melo-melo WrassePerciformesMarineHalichoeres melanochir
Melon ButterflyfishPerciformesMarineChaetodon auriga
Melon GrouperPerciformesMarineCephalopholis melas
Melon Seed SharkSqualiformesMarineIsistius brasiliensis
Melon SwordtailCyprinodontiformesFreshwater rivers and streamsXiphophorus helleri
MelongenaNeogastropodaBrackish waters (error: not a fish)Melongena melongena
Menado CardinalfishPerciformesMarineApogon menadensis
Mendal's CichlidPerciformesFreshwater (Central America)Thorichthys mendeli
MenidiaAtheriniformesBrackishMenidia menidia
Mentawai RabbitfishSiganiformesMarineSiganus spinus
Mentella RedfishScorpaeniformesMarineSebastes mentella
Menzies' SkateRajiformesMarineBathyraja richardsoni
MerlinPerciformesMarineMakaira mazara
Mermaid FishOphidiiformesMarineCarapus bermudensis
MermaidfishPerciformesMarinePlesiops coeruleolineatus
Merry Widow LivebearerCyprinodontiformesFreshwater (Central America)Phallichthys quadripunctatus
Mesopelagic DragonfishStomiiformesMarinePhotonectes gyrinus
Mesopotamian Spiny EelSynbranchiformesFreshwaterMastacembelus mastacembelus
Metric BassPerciformesFreshwaterMacquaria ambigua
Mexican Blind Cave FishCharaciformesFreshwater cavesAstyanax mexicanus
Mexican Blind CavefishCharaciformesFreshwaterAstyanax mexicanus
Mexican Cave TetraCharaciformesFreshwater (Mexico)Astyanax mexicanus (cave variant)
Mexican CichlidPerciformesFreshwater (Mexico)Herichthys
Mexican Conger EelAnguilliformesMarineConger oceanicus
Mexican CrowntailPerciformesFreshwaterBetta edithae
Mexican DamselfishPerciformesMarineStegastes rectifraenum
Mexican GarLepisosteiformesFreshwater rivers and lakesAtractosteus tropicus
Mexican Golden TroutSalmoniformesFreshwaterOncorhynchus chrysogaster
Mexican GoodeidCyprinodontiformesFreshwater (Mexico)Goodea atripinnis
Mexican MollyCyprinodontiformesFreshwater/Brackish (Americas)Poecilia sphenops (wild variant)
Mexican Sailfin MollyCyprinodontiformesFreshwater/Brackish (Mexico)Poecilia velifera
Mexican SawfishPristiformesBrackish/MarinePristis pectinata
Mexican SilversideAtheriniformesFreshwaterChirostoma estor
Mexican TetraCharaciformesFreshwater caves and riversAstyanax mexicanus
Mexican TorpedoTorpediniformesMarineTorpedo californica
Michigan MadtomSiluriformesFreshwaterNoturus miurus
Micronesian CardinalfishPerciformesMarine (Micronesia)Apogonichthys ocellatus
Micronesian GrouperPerciformesMarine reefEpinephelus moultoni
Micronesian ParrotfishPerciformesMarine (Micronesia)Scarus microrhinos
Micronesian SurgeonfishAcanthuriformesMarine (Micronesia)Acanthurus lineatus (regional variant)
Micronesian TriggerfishTetraodontiformesMarine (Micronesia)Rhinecanthus rectangulus (Micronesian variant)
Mid-Atlantic Ridge RattailGadiformesMarineCoryphaenoides profundicola
Midas BlennyBlenniiformesCoral reefsEcsenius midas
Midas CichlidCichliformesFreshwater lakes in Central AmericaAmphilophus citrinellus
Midas Cichlid (Orange Morph)PerciformesFreshwater (Central America)Amphilophus citrinellus (orange variant)
Midas Cichlid (Red Morph)PerciformesFreshwater (Central America)Amphilophus citrinellus (red variant)
Midnight AngelfishPerciformesCoral reefs in the Indo-PacificCentropyge nox
Midnight BassPerciformesFreshwater rivers and streamsMicropterus coosae
Midnight ClownfishPerciformesMarine (Western Pacific)Amphiprion percula (Melanistic variant)
Midnight GobyGobiiformesMarine (Indo-Pacific)Gobiodon rivulatus (dark variant)
Midnight ParrotfishPerciformesCoral reefsScarus coelestinus
Midnight SnapperPerciformesMarine (Indo-Pacific)Macolor macularis
Midnight WrassePerciformesMarine (Indo-Pacific)Stethojulis albovittata
MidshipmanBatrachoidiformesDeep marine watersPorichthys notatus
Midshipman (Plainfin)BatrachoidiformesMarinePorichthys notatus
Midshipman (Speckled)BatrachoidiformesMarinePorichthys myriaster
Midshipman FishBatrachoidiformesMarinePorichthys notatus
Midwater EelpoutPerciformesMarinePachycara pammelas
Midwater FangtoothStomiiformesMarineAnoplogaster cornuta
Midwater HagfishMyxiniformesMarineEptatretus cirrhatus
Midwater HatchetfishStomiiformesMarineArgyropelecus hemigymnus
Midwater LanternfishMyctophiformesMarineLampanyctus alatus
Midwater LingGadiformesMarineMolva molva
Midwater LoachCypriniformesFreshwaterBotia dario
Midwater OctopusOctopodiformesMarineGraneledone boreopacifica
Midwater ProwfishPerciformesMarinePteraclis velifera
Midwater SnakefishAulopiformesMarineChauliodus sloani
Midwater SquirrelfishBeryciformesMarineSargocentron spiniferum
Midwater SwallowerPerciformesMarineChiasmodon niger
Midwater ViperfishStomiiformesMarineChauliodus macouni
Milford PerchPerciformesFreshwaterMicropterus salmoides
Milk SharkCarcharhiniformesMarine (Tropical Indo-Pacific)Rhizoprionodon acutus
Milk TetraCharaciformesFreshwater (South America)Gymnocorymbus ternetzi (white variant)
MilkfishGonorynchiformesMarine/BrackishChanos chanos
Milkfish (Atlantic)GonorynchiformesMarine/Brackish (Atlantic Ocean)Chanos chanos atlanticus
Milkfish (Indonesian)GonorynchiformesMarine/Brackish (Indonesia)Chanos chanos indonesiensis
Milkfish (Pacific)GonorynchiformesMarine/Brackish (Pacific Ocean)Chanos chanos pacificus
Milkfish AgressorPerciformesMarineChanos chanos
MilksharkCarcharhiniformesMarineRhizoprionodon acutus
Millepora BlennyPerciformesMarineEcsenius midas
Millet ButterflyfishPerciformesMarineChaetodon miliaris
MiltfishTetraodontiformesMarineMola mola
Mimic BlennyBlenniiformesMarine (Indo-Pacific)Plagiotremus phenax
Mimic CardinalfishPerciformesMarineGymnapogon philippinus
Mimic FilefishTetraodontiformesMarine (Indo-Pacific)Paraluteres prionurus
Mimic OctopusOctopodiformesMarine (Indo-Pacific)Thaumoctopus mimicus
Mimic SandperchPerciformesMarineParapercis mimica
Mimic SurgeonfishPerciformesMarineAcanthurus pyroferus
Mimic Surgeonfish (Yellow Mimic)AcanthuriformesMarine (Indo-Pacific)Acanthurus pyroferus (juvenile)
Mimic Surgeonfish (Yellowbelly)AcanthuriformesMarine (Indo-Pacific)Acanthurus triostegus (juvenile)
Mimic TangAcanthuriformesMarineAcanthurus pyroferus
Mimic Tang (Kole Mimic)AcanthuriformesMarine (Central Pacific)Ctenochaetus strigosus (juvenile)
Mimic TriggerfishTetraodontiformesMarine (Indo-Pacific)Pseudobalistes fuscus
Mimic WrassePerciformesMarinePseudojuloides cerasinus
Minbo GobyGobiiformesFreshwaterGlossogobius minbo
Mindanao CardinalfishPerciformesMarine (Philippines)Apogon mindanensis
Mindanao GobyGobiiformesFreshwaterPandaka pygmaea
Minerva GrouperPerciformesMarineEpinephelus adscensionis
Miniature GobyGobiiformesMarineEviota pellucida
Miniature TriggerfishTetraodontiformesMarine (Indo-Pacific)Sufflamen bursa
Minio GrouperPerciformesMarineEpinephelus miniata
MinnowCypriniformesFreshwaterVarious Cyprinidae
Minnow (Bluntnose)CypriniformesFreshwaterPimephales notatus
Minnow (Brassy)CypriniformesFreshwaterHybognathus hankinsoni
Minnow (Common)CypriniformesFreshwaterPhoxinus phoxinus
Minnow (Creek)CypriniformesFreshwaterSemotilus atromaculatus
Minnow (Fathead)CypriniformesFreshwaterPimephales promelas
Minnow (Golden Shiner)CypriniformesFreshwaterNotemigonus crysoleucas
Minnow (Leopard Dace)CypriniformesFreshwaterRhinichthys falcatus
Minnow (Redfin)CypriniformesFreshwaterLythrurus umbratilis
Minnow (Rosyface)CypriniformesFreshwaterNotropis rubellus
Minnow (Silverjaw)CypriniformesFreshwaterEricymba buccata
Minnow (Spotfin)CypriniformesFreshwaterCyprinella spiloptera
Minnow (Stone Roller)CypriniformesFreshwaterCampostoma anomalum
Minnow (Striped Shiner)CypriniformesFreshwaterLuxilus chrysocephalus
Minnow (Suckermouth)CypriniformesFreshwaterPhenacobius mirabilis
Minnow (Western Silvery)CypriniformesFreshwaterHybognathus argyritis
Minor MudskipperGobiiformesBrackish/MarinePeriophthalmus minutus
Minotaur GobyGobiiformesMarineGobius minotaurus
Mint BlennyPerciformesMarine (Indo-Pacific)Ecsenius minutus
Mint GrouperPerciformesMarineEpinephelus chlorostigma
Mioga CatfishSiluriformesFreshwaterCranoglanis sinensis
Mirage CardinalfishPerciformesMarineApogonichthys ocellatus
Mirror CarpCypriniformesFreshwater lakes and riversCyprinus carpio haematopterus
Miss Columbia CharacinCharaciformesFreshwater (South America)Columbichthys sp.
Mississippi Alligator GarLepisosteiformesFreshwater (North America)Atractosteus spatula (regional variant)
Mississippi PaddlefishAcipenseriformesFreshwaterPolyodon spathula
Mississippi SheepsheadCypriniformesFreshwater (North America)Pogonichthys macrolepidotus (misnomer for freshwater drum)
Mississippi SilversideAtheriniformesFreshwater rivers and streamsMenidia audens
Missouri ChubCypriniformesFreshwater (North America)Macrhybopsis gelida
Missouri MinnowCypriniformesFreshwater (North America)Phenacobius mirabilis
Missouri Ozark CavefishPercopsiformesFreshwaterAmblyopsis rosacea
Mitchell's CoralfishPerciformesMarineChaetodon mitratus
Mitre BoxfishTetraodontiformesMarineOstracion cubicus
Miura BlennyBlenniiformesMarineCirripectes miuraensis
Miyake's DragonfishStomiiformesMarineBathophilus miyakeae
Miyako Dwarf GobyGobiiformesMarineTrimma miyakoense
Miyakojima BlennyBlenniiformesMarineEcsenius miyakojimensis
Mohr's GobyGobiiformesMarine (Mediterranean Sea)Gobius cobitis
MojarraEupercariaCoastal marine and brackish watersGerreidae family
Mojarra (Atlantic)PerciformesMarine/Brackish (Western Atlantic)Eucinostomus gula
Mojarra (Pacific)PerciformesMarine/Brackish (Eastern Pacific)Eucinostomus argenteus
MokiPerciformesCoastal marine waters around New ZealandLatridopsis ciliaris
Mokozan BreamPerciformesMarine (Western Pacific)Acanthopagrus latus
MolaTetraodontiformesMarineVarious Molidae
Mola MolaTetraodontiformesOpen ocean temperate and tropical watersMola mola
Mola Mola (Ocean Sunfish)TetraodontiformesMarineMola mola
MolasTetraodontiformesOpen ocean temperate and tropical watersMolidae family
Molave SnapperPerciformesMarine neriticLutjanus decussatus
MollyCyprinodontiformesFreshwaterPoecilia sphenops
Molly Miller BlennyBlenniiformesMarine (Atlantic/Mediterranean)Scartella cristata
Moluccan CardinalfishPerciformesMarineApogon moluccensis
Mona Lisa KillifishCyprinodontiformesFreshwaterAphyosemion monastyrskii
Monacanthidae TriggerfishTetraodontiformesMarine (Tropical/Subtropical)Monacanthidae
Monacanthus FilefishTetraodontiformesMarine (Indo-Pacific)Monacanthus chinensis
Monaco MorayAnguilliformesMarineGymnothorax monocondylus
Monarch SeafishPerciformesDeep ocean watersLampris guttatus
Money GobyGobiiformesCoral reefsPriolepis semidoliata
Mongolian FishCypriniformesFreshwater (Mongolia)Leuciscus mongolicus
Mongolian GraylingSalmoniformesFreshwaterThymallus brevirostris
Mongolian RedfinCypriniformesFreshwaterChanodichthys mongolicus
Mongolian RoachCypriniformesFreshwater (Mongolia)Rutilus rutilus lacustris
Mongolian TroutSalmoniformesFreshwater rivers and lakes in East AsiaBrachymystax lenok
Monkeyface PricklebackPerciformesMarine intertidalCebidichthys violaceus
MonkfishLophiiformesTemperate and cold marine watersLophius piscatorius
Monkfish (American)LophiiformesMarine (Western Atlantic)Lophius americanus
Monkfish (Anglerfish)LophiiformesMarineLophius piscatorius
Monkfish (South African)LophiiformesMarine (Southeast Atlantic)Lophius vomerinus
MonoPerciformesBrackish/Marine (Indo-Pacific)Monodactylus argenteus
Monocle BreamPerciformesMarineScolopsis bilineata
Monodactylus SebaePerciformesMarine/BrackishMonodactylus sebae
Monolisk FishPerciformesMarine/BrackishMonodactylus argenteus
Monsieur ParrotfishPerciformesMarine (Western Atlantic)Scarus coeruleus
Montague's Sea SnailScorpaeniformesMarineLiparis montagui
Montana Arctic GraylingSalmoniformesCold freshwater lakes and riversThymallus arcticus
Montana KillifishCyprinodontiformesFreshwaterFundulus notatus
Montebello GobyGobiiformesMarineAmblygobius pholegma
Montego Bay KillifishCyprinodontiformesFreshwater (Jamaica)Rivulus rochfordi
Monterey Bay SharkCarcharhiniformesMarine (Eastern Pacific)Apristurus brunneus
Monterey FlatheadScorpaeniformesMarineParabembras curtus
Montrouzier's MorayAnguilliformesMarineGymnothorax montrouzieri
Moon TriggerfishTetraodontiformesMarineSufflamen bursa
Moon WrassePerciformesMarine (Indo-Pacific)Thalassoma lunare
Moon snailLittorinimorphaCoastal marine (error: not a fish)Naticidae family
Moon wrassePerciformesMarine reefThalassoma lunare
MooneyeHiodontiformesFreshwater rivers and lakes in North AmericaHiodon tergisus
MoonfishCarangiformesMarineVarious Meneidae
Moonfish (Atlantic)CarangiformesMarine (Western Atlantic)Selene vomer
Moonfish (Caribbean)CarangiformesMarine (Western Atlantic)Selene setapinnis
Moonfish (Pacific)CarangiformesMarine (Eastern Pacific)Vomer setapinnis
Moonfish (West African)CarangiformesMarine (Eastern Atlantic)Selene dorsalis
Moonfish TrevallyPerciformesMarineSelene vomer
Moonlight DragonetPerciformesMarine (Western Pacific)Synchiropus splendidus (variant)
Moonlight GouramiAnabantiformesFreshwater (Southeast Asia)Trichopodus microlepis
Moonlight TriggerfishTetraodontiformesMarine (Tropical/Subtropical Oceans)Canthidermis maculata
MoonlighterPerciformesMarineTilodon sexfasciatus
Moorish IdolPerciformesMarineZanclus cornutus
Moray CodPerciformesMarine (Southern Ocean)Muraenolepis microps
Moray CongerAnguilliformesMarineMuraenesox cinereus
Moray EelAnguilliformesMarineVarious Muraenidae
Moray GobyGobiiformesMarine/Brackish (Indo-Pacific)Acentrogobius nebulosus
Moray Pike-CongerAnguilliformesMarineMuraenesox bagio
Mordacia LampreyPetromyzontiformesFreshwater/AnadromousMordacia mordax
Mordax MorayAnguilliformesMarine (Eastern Pacific)Gymnothorax mordax
Morelia CodGadiformesMarineMora moro
Morena EelAnguilliformesMarine (Indo-Pacific)Gymnothorax kidako
Moreno's PipefishSyngnathiformesMarine (Eastern Atlantic)Syngnathus morenae
Moreton Bay SkateRajiformesMarineRaja whitleyi
Mori's CatfishSiluriformesFreshwater (Africa)Clarias morii
Morning Glory GobyGobiiformesMarine (Indo-Pacific)Valenciennea strigata
Morning GobyPerciformesMarineAmblygobius phalaena
Morning Star DamselfishPerciformesCoral reefsAmblyglyphidodon aureus
Morning Star DartfishPerciformesMarine (Western Pacific)Ptereleotris micromaculata
Morning Star GobyGobiiformesMarine (Indo-Pacific)Valenciennea puellaris
Morning Star WrassePerciformesMarine (Indo-Pacific)Cirrhilabrus exquisitus
Moroccan SolePleuronectiformesMarine (Eastern Atlantic)Dicologlossa cuneata
Morone BassPerciformesFreshwater/AnadromousMorone saxatilis
Morosini's GobyGobiiformesMarineGobius morosini
Morro Bay LampreyPetromyzontiformesFreshwater/AnadromousLampetra richardsoni
Mosaics FlounderPleuronectiformesMarine (Indo-Pacific)Pseudorhombus arsius
Mosasaur ToothMosasauridaeMarine (Extinct)Mosasaurus hoffmannii
Moses PerchPerciformesMarineLutjanus russellii
MosquitofishCyprinodontiformesFreshwaterGambusia affinis
Moss BlennyBlenniiformesMarine (Indo-Pacific)Cirripectes castaneus
Mossambicus TilapiaCichliformesFreshwater/BrackishOreochromis mossambicus
Mossback SculpinScorpaeniformesMarineClinocottus globiceps
Mosshead WarbonnetPerciformesMarineChirolophis nugator
Mossy RockfishScorpaeniformesMarineSebastes moseri
Motoro RayMyliobatiformesFreshwater rivers in South AmericaPotamotrygon motoro
Mottled EelAnguilliformesFreshwater/CatadromousAnguilla nebulosa
Mottled FlatheadScorpaeniformesMarineCociella punctata
Mottled GobyGobiiformesMarineGobius cobitis
Mottled GrouperPerciformesMarineMycteroperca rubra
Mottled MorayAnguilliformesMarineGymnothorax vicinus
Mottled SculpinScorpaeniformesCold freshwater rivers and streamsCottus bairdi
Mottled Snake EelAnguilliformesMarine (Indo-Pacific)Myrichthys pardalis
Mountain BarbelCypriniformesFreshwater (Africa)Barbus oreas
Mountain CatfishSiluriformesFreshwaterAmblydoras hancocki
Mountain Dwarf CichlidPerciformesFreshwater (South America)Apistogramma cacatuoides
Mountain GobyGobiiformesFreshwaterSicyopus discordipinnis
Mountain KillifishCyprinodontiformesFreshwater (Middle East)Aphanius mento
Mountain MulletMugiliformesFreshwater/Brackish (Americas)Agonostomus monticola
Mountain Suckermouth CatfishSiluriformesFreshwater (South America)Ancistrus sp. (mountain variant)
Mountain WhitefishSalmoniformesFreshwaterProsopium williamsoni
Mouse CatfishSiluriformesFreshwaterMarakeli marleyi
Mouse EelAnguilliformesMarine (Indo-Pacific)Dysomma anale
MousefishLophiiformesTropical and subtropical marine watersAntennariidae family
MouthbrooderCichliformesFreshwater lakes and riversVarious Cichlidae
Mozambique BlennyPerciformesMarineBlennius mozam
Mozambique MouthbrooderPerciformesFreshwater/BrackishOreochromis mossambicus
Mozambique TilapiaCichliformesFreshwater/BrackishOreochromis mossambicus
Mud BassPerciformesFreshwater lakes and riversMicropterus salmoides floridanus
Mud Bass (Florida strain)PerciformesFreshwater lakes and riversMicropterus salmoides floridanus
Mud BlowerPerciformesMarine reefRhinecanthus rectangulus
Mud CodGadiformesFreshwaterLota lota
Mud CrabDecapodaIntertidal zones (error: not a fish)Various species
Mud DabberPleuronectiformesMarine/BrackishTrinectes maculatus
Mud DragonetPerciformesMarine (Indo-Pacific)Discordipinna griessingeri
Mud LoachCypriniformesFreshwaterMisgurnus anguillicaudatus
Mud MarlinPerciformesMarineTetrapturus angustirostris
Mud MorayAnguilliformesMarineGymnothorax griseus
Mud PerchPerciformesFreshwater (Australia)Acanthoperca fluviatilis
Mud SunfishPerciformesFreshwaterAcantharctus concentrus
Mud TroutSalmoniformesCold freshwater streams and lakesSalvelinus malma
Mud Worm BlennyPerciformesMarineXiphasia setifer
Mudfish (African)ProtopteridaeFreshwater (Africa)Protopterus annectens
MudskipperGobiiformesBrackish/MarineVarious Oxudercinae
Mudskipper (Indian)GobiiformesBrackish/Marine (Indo-Pacific)Periophthalmus modestus
MuffinfishPerciformesDeep marine waters (error: not starting with M for the name)Epigonus telescopus
Mugil SharkCarcharhiniformesMarine/FreshwaterCarcharhinus leucas
Mugiliformes MulletMugiliformesMarine/Brackish/Freshwater (Worldwide)Mugilidae
Mulatto CongerAnguilliformesMarineConger cinereus
MulefishPerciformesMarine/Brackish/Freshwater (Worldwide)Mugil cephalus
Mullet BlennyPerciformesMarineBlennius trigloides
Mullet SnapperPerciformesMarine neriticLutjanus sebae
Mullet Snapper (Pacific)PerciformesMarine (Eastern Pacific)Lutjanus fuscescens
Multiband WrassePerciformesMarineParacheilinus octotaenia
Multibar AngelfishPerciformesCoral reefsParacentropyge multifasciata
Multicolor AngelfishPerciformesMarineCentropyge multicolor
Multifasciatus Shell DwellerPerciformesFreshwaterNeolamprologus multifasciatus
Mumbai MorayAnguilliformesMarine (Indian Ocean)Gymnothorax mumbai
MummichogCyprinodontiformesBrackish/FreshwaterFundulus heteroclitus
Mummichog KillifishCyprinodontiformesBrackish/MarineFundulus heteroclitus
Mummichog-like KillifishCyprinodontiformesBrackish/FreshwaterFundulus confluentus
Mummified GobyGobiiformesMarine (Eastern Atlantic)Gobius maderensis
Muraena MelanotisAnguilliformesMarineMuraena melanotis
Muraenesox EelAnguilliformesMarineMuraenesox cinereus
Muraenidae EelAnguilliformesMarine (Eastern Pacific)Muraena robusta
Muraenidae Snake EelAnguilliformesMarine (Western Atlantic)Myrichthys breviceps
Murdoch's FlounderPleuronectiformesMarineAmmotretis murdochii
Murine EelAnguilliformesMarine (Indo-Pacific)Muraenesox cinereus
Murray CodPerciformesFreshwater rivers and lakesMaccullochella peelii
MuskellungeEsociformesFreshwater lakes and rivers in North AmericaEsox masquinongy
Muskellunge (Purebred)EsociformesFreshwater (North America)Esox masquinongy
Muskellunge (Tiger)EsociformesFreshwater lakes and riversEsox masquinongy x Esox lucius
Muskellunge PikeEsociformesFreshwater lakes and riversEsox masquinongy
Musket FishEsociformesFreshwater lakes and rivers (redundant)Esox masquinongy
MusketelAcanthuriformesMarine (Indo-Pacific)Acanthurus musketel
Mustache TriggerfishTetraodontiformesMarine (Eastern Pacific)Balistes polylepis
Mustard CatfishSiluriformesFreshwater rivers in South AmericaLeiarius marmoratus
Mustard EelAnguilliformesFreshwater/BrackishAnguilla rostrata
Mustelid SharkCarcharhiniformesCoastal temperate marine watersMustelus mustelus
Mustelus GlaucusCarcharhiniformesMarineMustelus griseus
Mustelus ManazoCarcharhiniformesMarineMustelus manazo
MuturuMormyriformesFreshwaterMormyrops anguilloides
Muzar SharkCarcharhiniformesMarineCarcharhinus obscurus
Muzzle MorayAnguilliformesMarineGymnothorax miliaris
MyakaCichliformesFreshwaterMyaka myaka
Myanmar BarbCypriniformesFreshwater (Myanmar)Dawkinsia filamentosus
Myanmar DanioCypriniformesFreshwaterDanio kyathit
Myanmar Hillstream LoachCypriniformesFreshwater (Myanmar)Schistura myaemai
Myanmar RasboraCypriniformesFreshwater rivers and streamsRasbora myersi
Myanmar Spotted CatfishSiluriformesFreshwater (Myanmar)Mystus vittatus
Myctophid FishMyctophiformesMarineMyctophum punctatum
Mystery SnailArchitaenioglossaFreshwater (error: not a fish)Pomacea bridgesii
Mystic TriggerfishTetraodontiformesMarine (Western Pacific)Rhinecanthus abyssus
Mystus CatfishSiluriformesFreshwater rivers and streams in AsiaMystus spp.

List of fish with other letters