Freshwater

Chub, Hornyhead

Nocomis biguttatus

The body of the hornyhead chub is slender, with a rounded snout. The mouth is large, …

Climbing perch

Anabas testudineus

The body is slightly elongated, with straight back and sides, the head is rather large. It …

Common bleak

Alburnus alburnus

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

Crappie, Black

Pomoxis nigromaculatus

The black crappie and white crappie are similar in colour, ranging from silvery olive to bronze …

Crappie, White

Pomoxis annularus

White crappie and black crappie are the same colour, ranging from silvery olive to bronze with …

Dace, Blacknose

Rhinichthys atratulus

The blacknose dace has a long, slender body with a slightly protruding snout. The whiskers, characteristic …

Darters: Johnny Darter

Etheostoma nigrum

There are three known genera of darters: Percina, which contains about 40 species: Etheostoma, which contains …

Dolly Varden trout

Salvelinus malma

The body of the Dolly Varden trout is elongated, somewhat rounded, with the greatest depth of …

Drum, Red

Sciaenops ocellatus

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

Electric eel

Electrophorus electricus

The electric eel has bare skin, no scales, and a very elongated body that is rounded …

European grayling

Thymallus thymallus

The distinctive features of the European grayling are its spindle-shaped body, its upper jaw that reaches …

European perch

Perca fluviatilis

The European perch has a laterally compressed body covered with dense, small ctenoid scales. It has …

Fallfish

Semotilus corporalis

The body of the fallfish is slender with a blunt, pointed head. There is a single …

Gar, Alligator

Lepisosteus spatula

The body of the alligator gar is long and cylindrical, covered with heavy ganoid (rhomboid) scales. …

Gar, Florida

Lepisosteus platyrhincus

The body of the Florida Gar is cigar-shaped with a broad, toothed snout. The single dorsal …

Gar, Longnose

Lepisosteus osseus

The body of the Long-billed Gar is long and slender. It has an elongated narrow bill …

Gar, Shortnose

Lepisosteus platostomus

The body is long and cylindrical, covered with ganoid (rhomboid) scales. The upper jaw has one …

Gar, Spotted

Lepisosteus oculatus

The body of the spotted gar is long and cylindrical, covered with hard ganoid (rhomboid) scales. …

Golden pencilfish

Nannostomus beckfordi

The genus name Nannostomus comes from the Latin nannus ("small") and the Greek stoma ("mouth"), referring …

Goldeye

Hiodon alosoides

The goldeye is a small fish with a compressed body that is deep in proportion to …

Goldfish

Carassius auratus

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

Goliath tigerfish

Hydrocynus goliath

The Goliath tigerfish has a body shape similar to a tuna's. Due to their predatory nature, …

Grass pickerel, Redfin pickerel

Esox americanus vermiculatus, Esox americanus americanus

Thin and cylindrical, grass and redfin pickerel look very similar to chain pickerel, with the same …

Grayling, Arctic

Thymallus arcticus

Graceful lines, large fins and spectacular coloration make the grayling a striking fish. The most striking …