Allfishes
Aral Basin snowtrout
Schizothorax intermedius
The Aral Basin snowtrout has a fusiform (spindle-shaped) body. The head is flat on the upper …
Freshwater
Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.
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Arctic lamprey
Lethenteron camtschaticum
The Arctic lamprey is characterized by its eel-like body shape, the presence of two large teeth …
Asian stinging catfish
Heteropneustes fossilis
The Asian stinging catfish has an elongated, slightly compressed body that writhes like a snake when …
Atlantic stingray
Dasyatis sabina
The Atlantic stingray has an elongated, pointed snout. Spiracles are located behind the eyes. The ventral …
Bowfin
Amia calva
The ancient fish, described by some as looking more like a snake than a fish, has …
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 …
Burbot
Lota lota
The head is flattened, broad, with an unpaired antenna on the chin and short antennae at …
Campylomormyrus numenius
Campylomormyrus numenius
Campylomormyrus numenius possesses a highly elongated, ventrally curved rostrum, analogous to an elephant's trunk, terminating in …
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 …
Common nase
Chondrostoma nasus
A swift river fish with a unique mouth structure, known for its schooling behavior and specific …
Dace
Rhinichthys cataractae
Dace have a slender body. Most species have terminal antennae. The pearl dace (Semotilus margarita margarita) …
Eastern bottle-nosed mormyrid
Mormyrus longirostris
The eastern bottle-nosed mormyrid has such a distinctive appearance that it cannot be confused with any …
Finescaled four-eyed fish
Anableps microlepis
Anableps: Greek, ana = up + Greek, blepo, blepsis, -eos = glance, sight.The elongated cylindrical body …
Fourspine stickleback
Apeltes quadracus
The fourspine stickleback possesses an elongated, fusiform body lacking scales. Typically, it exhibits four or five …
Frankfish
Gymnarchus niloticus
The Frankfish has a long and slender body. It possesses four small bony gills on both …
Green terror
Andinoacara rivulatus, syn. Aequidens rivulatus.
The Green Terror is a stocky fish with a prominent forehead. In adult males, a pronounced …
Honey sucker
Gyrinocheilus aymonieri
The scientific name was given in honour of the French linguist and explorer Étienne Aymonier (1844-1929).The …