Freshwater

Asian stinging catfish

Heteropneustes fossilis

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

Black Molly

Poecilia sphenops

The Black Molly has an elongated body. Females tend to be more rounded in appearance. The …

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 …

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 mosquitofish

Gambusia holbrooki

The body of the Eastern mosquitofish is moderately elongated, not tall, and laterally compressed. It is …

Finescaled four-eyed fish

Anableps microlepis

Anableps: Greek, ana = up + Greek, blepo, blepsis, -eos = glance, sight.The elongated cylindrical body …

Green swordtail

Xiphophorus hellerii

Green swordtails have elongated, narrow bodies that are flattened on the sides. They also have large …

Guppy

Poecilia reticulata

Guppies exhibit pronounced sexual dimorphism, with males and females differing in size, shape, and colouration. Males …

Least killifish

Heterandria formosa

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

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 …