The freshwater fourhorn sculpin is only found in arctic regions of Canada.

The Fourhorn sculpin is common in its waters.

Dalsland's provincial fish the fourhorn sculpin is also found in Stora Le.

The marine and freshwater forms of the fourhorn sculpin (M. quadricornis) are closely related to the deepwater sculpin.

Myoxocephalus quadricornis (Fourhorn sculpin)

The fourhorn sculpin (Myoxocephalus quadricornis or Triglopsis quadricornis) is a species of fish in the Cottidae family.

The deepwater sculpin and fourhorn sculpin (Myoxocephalus quadricornis) inhabit deep cold lakes of North America and Northern Europe, respectively.

M. affinis is itself the prey of Saduria entomon, Harmothoe sarsi (a polychaete) and fishes such as cod, herring and the fourhorn sculpin, Myoxocephalus quadricornis.

COSEWIC Assessment and Update Status Report on the Fourhorn Sculpin Myoxocephalus quadricornis Freshwater form in Canada.

Lake whitefish (Coregonus clupeaformis) may also occur in upper reaches of the Thomsen and marine Fourhorn sculpin (Myoxocephalus quadricornis) are occasionally found in the lower reaches of the river.

Important fish species include polar cod, Arctic cod, saffron cod, Arctic char, chum salmon, Arctic cisco, least cisco, lake whitefish, broad whitefish, Pacific herring, fourhorn sculpin, inconnu and flatfish.

The deepwater sculpin Myoxocephalus thompsonii of continental North American freshwater lakes (e.g., the Great Lakes) is closely related to the fourhorn sculpin and alternatively considered as a subspecies of the latter, Myoxocephalus quadricornis thompsonii.

A peculiar feature of the fauna is that it contains a number of glacial relict species, isolated populations of arctic species which have remained in the Baltic Sea since the last glaciation, such as the large isopod Saduria entomon, the Baltic subspecies of ringed seal, and the fourhorn sculpin.

The deepwater sculpin and fourhorn sculpin (Myoxocephalus quadricornis) inhabit deep cold lakes of North America and Northern Europe, respectively.

Lake whitefish (Coregonus clupeaformis) may also occur in upper reaches of the Thomsen and marine Fourhorn sculpin (Myoxocephalus quadricornis) are occasionally found in the lower reaches of the river.

The deepwater sculpin Myoxocephalus thompsonii of continental North American freshwater lakes (e.g., the Great Lakes) is closely related to the fourhorn sculpin and alternatively considered as a subspecies of the latter, Myoxocephalus quadricornis thompsonii.