Freshwater

African brown knifefish

Xenomystus nigri

The body of this fish is unusual: it is flattened ventrolaterally and elongated, giving it a …

Arapaima

Arapaima gigas

The body of the arapaima is elongated and compressed from the sides. It is covered with …

Asian stinging catfish

Heteropneustes fossilis

The Asian stinging catfish has an elongated, slightly compressed body that writhes like a snake when …

Blotched upside-down catfish

Synodontis nigriventris

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

Blue leopard corydoras

Corydoras paleatus

The Blue Leopard Corydoras has a strongly curved back line and an almost flat abdomen. Its …

Brazhnikov's catfish

Tachysurus brashnikowi

Brazhnikov's catfish belongs to the family Bagridae (bagrid catfishes). The species is a demersal fish, meaning …

Bullhead, Black

Ameiurus melas

The "black" bullhead can actually be yellowish green, dark green, olive, brown, or black on the …

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 …

Bushymouth catfish

Ancistrus dolichopterus

The Bushymouth catfish has a flattened body that is completely covered in polygonal bony plates. Its …

Campylomormyrus curvirostris

Campylomormyrus curvirostris, gnathonemus curvirostris, campylomormyrus rhynchophorus.

The snout of Campylomormyrus curvirostris is highly elongated and curved downward like a trunk, with a …

Campylomormyrus numenius

Campylomormyrus numenius

Campylomormyrus numenius possesses a highly elongated, ventrally curved rostrum, analogous to an elephant's trunk, terminating in …

Candiru

Vandellia cirrhosa

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

Cascarudo

Callichthys callichthys

Cascarudo has an elongated, slightly flattened body covered with two rows of bony plates. It has …

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 …

Eastern bottle-nosed mormyrid

Mormyrus longirostris

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

Frankfish

Gymnarchus niloticus

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

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 …

Malapterurus electricus

Malapterurus electricus

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