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Concept
Nototheniidae
Summary
In some scientific literature, the term "cod icefish" is used to identify members of this family. This should not be confused with the term "icefish," which refers to the "white-blooded" fishes of the family Channichthyidae. See Icefish (disambiguation).
Nototheniidae, the notothens or cod icefishes, is a family of ray-finned fishes, part of the suborder Notothenioidei which is traditionally placed within the order Perciformes. They are largely found in the Southern Ocean.
Nototheniidae was described as a family in 1861 by the German-born British ichthyologist Albert Günther with the type genus being Notothenia which had been described in 1844 by Sir John Richardson with the species Notothenia coriiceps which Richardson had also described in 1844 subsequently being designated as the type in 1862 by Theodore Nicholas Gill. The name Notothenia means “coming from the south”, a reference to the Antarctic distribution of the genus. They are traditionally placed in the order Perciformes together with their relatives, Actual phylogenetic relationships among species of suborder Notothenioidei have not yet been determined with certainty.
The following subfamilies and genera are classified within the family Nototheniidae:
Pleuragrammatinae Andersen & Hureau 1979
Aethotaxis H. H. DeWitt, 1962
Dissostichus Smitt, 1898
Gvozdarus Balushkin, 1989
Pleuragramma Balushkin, 1982
Nototheniinae Günther 1861
Gobionotothen Balushkin, 1976
Lepidonotothen Balushkin, 1976
Lindbergichthys Balushkin, 1979
Notothenia Richardson, 1844
Nototheniops Balushkin, 1976
Paranotothenia Balushkin, 1976
Patagonotothen Balushkin, 1976
Trematominae Balushkin,1982
Cryothenia Daniels, 1981
Pagothenia Nichols & La Monte, 1936
Trematomus Boulenger, 1902
These subfamilies are not recognised in the 5th Edition of Fishes of the World.
Nototheniidae fishes have fusiform or elongate and oblong bodies. They typically have two dorsal fins, the first having 3 to 11 spines and the second having 25-42 segmented fin rays. The anal fin is similar to the second dorsal fin and has 22 to 40 segmented rays.
Official source
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