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Arctogadus glacialis
''Arctogadus glacialis'', known also with ambiguous common names Arctic cod〔( Gadiform fishes of the World (Order Gadiformes) An annotated and illustrated catalogue of Cods, Hakes, Grenadiers and other gadiform fishes known to date. ) FAO Fisheries Synopsis No. 125, Volume 10. 1990.〕 and polar cod,〔〔(Polar Cod ) University of Guelph.〕 is an Arctic species of fish in the cod family Gadidae, related to the true cod (genus ''Gadus''). ''Arctogadus glacialis'' is found in icy water and often not seen in warm water. They grow to 30 cm long,and are favorite food of narwhals and other arctic whales.
==Common names and taxonomy==
The common "Arctic cod" and "polar cod" can refer to either ''Arctogadus glacialis'' or ''Boreogadus saida'', and "Arctic cod" may also refer to ''Eleginus nawaga''.
Another Arctic gadid, the East Siberian cod (''Arctogadus borisovi''), was until recently considered the closest relative of ''A. glacialis''. It has, however, been found not to be distinct from ''A. glacialis'', and should be included in this species. According to this result, ''Arctogadus'' is a monotypic genus. However, ''Arctogadus'' is a close relative of ''Boreogadus'', and should perhaps be included in that genus.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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