All Fishes

Mackerel icefish

Champsocephalus gunnari

Champsocephalus: Greek, champso = crocodile, voracious predator + Greek, kephale = head.The body of the mackerel …

Mackerel scad

Decapterus macarellus

They have elongated bodies that look somewhat round when viewed from top to bottom. This species …

Mackerel tuna

Euthynnus affinis

They have a spindle-shaped dense body, rounded in cross section. The teeth are small, conical, arranged …

Mackerel, Atlantic

Scomber scombrus

The body is fusiform, slightly compressed from the sides. The scales are fine, cycloidal. The length …

Mackerel, Cero

Scomberomorus regalis

The body shape is typical of king mackerel. The mackerel is iridescent bluish-green above and silvery …

Mackerel, Frigate

Auxis thazard

Body shape is similar to A. rochti. The "corset" in the posterior part is narrow, no …

Mackerel, King

Scomberomorus cavalla

The body is torpedo-shaped, compressed from the sides. The lower jaw is slightly protruded forward relative …

Mackerel, Pacific Jack

Trachurus symmetricus

The body of the Pacific horse mackerel is somewhat compressed and elongated, and the tail is …

Mackerel, Pacific Sierra

Scomberomorus sierra

It is similar in appearance to the Spanish mackerel.

Mackerel, Spanish

Scomberomorus maculatus

The slender, elongated body of the Spanish mackerel is silver with a bluish or olive green …

Madtom, Brown

Noturus phaeus

Brown madtom has a dull coloration. The upper part of the body has a chocolate brown …

Madtoms: Black Madtom

Noturus funebris

The madtom is recognized by its unique fleshy fin. In non-madtom catfish, the fat fin protrudes …

Mahi-mahi

Coryphaena hippurus

The name "Coryphaena" is derived from the Greek κορυφή - head, and the species name from …

Malabar danio

Devario malabaricus

The Malabar danio has a fusiform (spindle-shaped) body and is a larger, more robust relative of …

Malabar grouper

Epinephelus malabaricus

Malabar grouper has ridged scales on body except cycloid scales on anterodorsal part, thorax and abdomen; …

Malapterurus electricus

Malapterurus electricus

Malapterurus electricus has a characteristic appearance that distinguishes it from most other catfish. It has an …

Man-of-war fish

Nomeus gronovii

The man-of-war fish has an elongated body and large eyes. This fish has a very high …

Mandarinfish

Synchiropus splendidus

Has a similar body shape to the goby, and this is the only similarity between the …

Mango tilapia

Sarotherodon galilaeus

The mouth is small, with the lower jaw length being less than 1/3 of the total …

Mangrove red snapper

Lutjanus argentimaculatus

The body of the Mangrove Red Snapper is spindle-shaped, moderately large. The snout is slightly pointed. …

Marbled electric ray

Torpedo marmorata

Their bodies are soft and flaccid. On either side of the head, electrically paired kidney-shaped organs …

Marbled stargazer

Uranoscopus bicinctus

They have a large head, flat on top, covered laterally and on top with flat tubercles. …

Mariana snailfish

Pseudoliparis swirei

The Mariana snailfish has an elongated, tadpole-like body that is pinkish-white in life. The head is …

Marlin, Blue

Makaira nigricans and Makaira mazara

The pectoral fins of the blue marlin are never rigid, even after death, and can be …