Freshwater

Bullhead, Brown

Ameiurus nebulosus

The head of the brown bullhead is large for its round and slender body, and the …

Bullhead, Yellow

Ameiurus natalis

A moderately slender fish, it has skin without scales. The coloration varies from yellowish-olive to brown …

Burbot

Lota lota

The head is flattened, broad, with an unpaired antenna on the chin and short antennae at …

Candiru

Vandellia cirrhosa

The candiru has an elongated body, a small head, and an abdomen that may appear swollen, …

Catfish, Blue

Ictalurus furcatus

Blue catfish are usually bluish-grey or slate-blue, without spots or other markings, although they can be …

Catfish, Channel

Ictalurus punctatus

The body is bare, elongated, slender and compressed at the rear. The caudal fin is long …

Catfish, Flathead

Pylodictus olivaris

The flathead catfish has a distinctive appearance and is not easily confused with any other species. …

Catfish, White

Ameiurus catus

White catfish resemble a cross between a channel cat and a bullhead, with a slightly forked …

Catfish: Channel Catfish

Ictalurus punctatus

Most catfish have no scales, but some are covered with heavy scales. They are characterised by …

Charr, Arctic

Salvelinus alpinus

Like all members of the genus Salvelinus, the Arctic charr has bright spots on the body, …

Chub

River chub is an olive-coloured fish with a strong body, large scales and light yellow to …

Chub, Creek

Semotilus atromaculatus

The chub's snout is pointed, the mouth large, with a small antenna at the corner of …

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 …

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 …

Dolly Varden trout

Salvelinus malma

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

Eastern bottle-nosed mormyrid

Mormyrus longirostris

The eastern bottle-nosed mormyrid has such a distinctive appearance that it cannot be confused with any …

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 …

Fahaka pufferfish

Tetraodon lineatus

The skin of the Fahaka pufferfish is scaleless, but the head and body are covered with …

Fallfish

Semotilus corporalis

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

Frankfish

Gymnarchus niloticus

The Frankfish has a long and slender body. It possesses four small bony gills on both …