Freshwater

African jewelfish

Hemichromis bimaculatus

The body of the African jewelfish is elongated and tall, the sides are flat.

Amazon leaffish

Monocirrhus polyacanthus

The Amazon leaffish resembles dead yellow-brown leaves in color and body shape. On the tip of …

Amu-Darya trout

Salmo oxianus

The Amu-Darya trout, in its external appearance, is typical of salmonid fish but has its own …

Arctic cisco

Coregonus autumnalis

The back of the Arctic cisco is rather high and slightly curved. The pelvis has an …

Arctic grayling

Thymallus arcticus

The Arctic grayling has 58 to 62 vertebrae. They have small mouths with small teeth on …

Bass, Peacock

No information

Their body shape generally resembles that of the perch. All known species have a prominent black …

Bering cisco

Coregonus laurettae

The Bering cisco has an elongated, compressed body. It is distinguished from the Arctic cisco (Coregonus …

Broad whitefish

Coregonus nasus

The Broad Whitefish has a broad, compressed body. Its nose is thick and humped, protruding behind …

Butterfly peacock bass

Cichla ocellaris

Butterfly peacock bass are characterized by a great variability in coloration. They are generally yellowish green, …

Charr, Arctic

Salvelinus alpinus

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

Charr: Brook Trout

Salvelinus fontinalus

The charr group includes only one species that is actually called 'charr' in English, Salvelinus alpinus, …

Chukot char

Salvelinus andriashevi

The Chukot char is a relative of the Pacific whitespotted char (Salvelinus leacomaenis). Its body is …

Cisco

Coregonus spp

Characterised by a thick dorsal fin and a split tail, the cisco has a terminal mouth …

Dolly Varden trout

Salvelinus malma

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

Dolly Varden, Bull Trout

Salvelinus malma, Salvelinus confluentus

These two char species, as well as Arctic char, are difficult to distinguish by appearance alone, …

European grayling

Thymallus thymallus

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

Grayling, Arctic

Thymallus arcticus

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

Green terror

Andinoacara rivulatus, syn. Aequidens rivulatus.

The Green Terror is a stocky fish with a prominent forehead. In adult males, a pronounced …

Humpback whitefish

Coregonus pidschian

The body of the humpback whitefish becomes more pronounced with age, growing taller. A well-defined hump …

Inconnu

Stenodus leucichthys

The general shape of the inconnu's body is very similar to that of the charr or …

Least cisco

Coregonus sardinella

The body of the Least Cisco is elongated, somewhat compressed at the sides, with the greatest …

Mango tilapia

Sarotherodon galilaeus

The mouth is small, with the lower jaw length being less than 1/3 of the total …

Mozambique Tilapia

Oreochromis mossambicus

The best known member of the tilapia group is the Mozambique tilapia (Oreochromis mossambicus), which is …

Nelma

Stenodus nelma

Nelma has a spindle-shaped body that is slightly flattened on the sides. Its mouth is large, …