Freshwater

Black tetra

Gymnocorymbus ternetzi

The black tetra has a flat, tall body.

Blotched upside-down catfish

Synodontis nigriventris

Body stocky, slightly flattened at the sides. Back more convex than abdomen, eyes large, mouth lower …

Broad whitefish

Coregonus nasus

The Broad Whitefish has a broad, compressed body. Its nose is thick and humped, protruding behind …

Cardinal tetra

Paracheirodon axelrodi

The Cardinal tetra has an elongated body that is slightly flattened on the sides. The females …

Chukot char

Salvelinus andriashevi

The Chukot char is a relative of the Pacific whitespotted char (Salvelinus leacomaenis). Its body is …

Common bleak

Alburnus alburnus

The body of the common bleak is elongated, strongly compressed laterally, with an almost straight dorsal …

Drum, Red

Sciaenops ocellatus

The red drum is similar in appearance to the black drum, although its maximum size is …

Goldfish

Carassius auratus

The body of the goldfish is short and tall with a slightly angular shape. It is …

Herring

Clupea

Body compressed from the sides, with jagged edge of abdomen. Scales moderate or large, rarely small. …

Herring, Atlantic

Clupea harengus

The body is not high (its height is about 1/5 of body length). Head is comparatively …

Least cisco

Coregonus sardinella

The body of the Least Cisco is elongated, somewhat compressed at the sides, with the greatest …

Least killifish

Heterandria formosa

Least killifish differ little in body shape from their closest relatives, the Poecilia. They have an …

Mango tilapia

Sarotherodon galilaeus

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

Mosquitofish

Gambusia affinis affinis

The male anal fin is modified and is an intermittent organ for introducing sperm into the …

Paddlefish

Polyodon spathula

The paddlefish is almost sharklike in appearance, and if you cut off its long paddle-like snout, …

Perch, White

Morone americana

The white perch has a deep, thin body that rises steeply upward from each eye to …

Pyrrhulina filamentosa

Pyrrhulina filamentosa

Pyrrhulina filamentosa has an elongated body with a large caudal fin, the upper lobe of which …

Salmon, Sockeye

Oncorhynchus nerka

The slimmest and most streamlined of the Pacific salmon, which are elongated and somewhat compressed from …

Shad, Alabama

Alosa alabamae

It has a large terminal mouth with upper and lower jaws of almost equal length. The …

Shad, American

Alosa sapidissima

The laterally compressed, rather deep body of the American shad is silvery white, with some amount …

Shad, Gizzard

Dorosoma cepedianum

The gizzard shad is one of two freshwater members of the herring family that has a …

Shad, Hickory

Alosa mediocris

Gray-green on the back and transitioning to silver on the sides, the hickory shad has transparent …

Shad, Threadfin

Dorosoma petenense

The threadfin shad has a silvery color and a deeply compressed body, most easily recognized by …

Shiner, Emerald

Notropis atherinoides

The Emerald Shiner is a slender, elongated fish with a pale silvery slate body that is …