| Champsocephalus | |
|---|---|
 | |
| Mackerel Icefish (C. gunnari) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Channichthyidae |
| Genus: | Champsocephalus T. N. Gill, 1862 |
| Type species | |
| Chaenichthys esox Günther, 1861 | |
Champsocephalus is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are native to the Southern Ocean.
Champsocephalus was first formally described as a genus in 1862 by the American ichthyologist Theodore Nicholas Gill as he thought that its type species, Chaenichthys esox which had been described in 1861 by Albert Günther, was distinct enough to be classified in its own genus. [1] The genus name is a compound of champsos meaning “crocodile” and cephalos which means “head”, Gill did not explain the allusion but it is thought to be a reference to the clearly predatory snout, like a crocodile's. [2]
There are currently two recognized species in this genus: [3]
Champsocephalus species do not have a spine on the snout. There are three radiating ridges on the operculum each ending in a spine. They have two lateral lines, upper and middle, and these have no bony plates. The bases of the first and second dorsal fins are almost continuous and the caudal fin is emarginate. [4] The maximum standard lengths of these fishes are 33 cm (13 in) for C. esox and 66 cm (26 in) for C. gunnari. [3]
Chamsocephalus icefishes are found in the Southern Ocean. They can be found off South America, the Falkland Islands, South Georgia, the Antarctic Peninsula, Kerguelen, Heard and Bouvet Islands. They are pelagic. [4]
Chamsocephalus icefishes are predatory and are known to feed on krill, mysids and fishes. [4]
Chamsocephalus icefishes are fished for using trawls off South America, Kerguelen and South Georgia. [4]
Champsocephalus esox, the pike icefish or northern icefish, is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes.
The mackerel icefish is a benthopelagic species of fish found in the Southern Ocean and the southernmost waters of the Atlantic Ocean. They are mainly to be found near Heard and McDonald Islands, Îles Kerguelen and islands in the south Atlantic such as South Georgia and Bouvet Island. The species also inhabits the northern waters of the Antarctic Peninsula. They live at depths of 0–700 metres (0–2,297 ft), but are commonly found at depths of 30 to 250 metres.
Paranotothenia magellanica, also known as Magellanic rockcod, Maori cod, blue notothenia or orange throat notothen, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean. "Maori chief" and "black cod", sometimes used for this species, usually refer to fishes from the related genus Notothenia. Being a perciform fish, it is unrelated to the true cods of the order Gadiformes. This species is commercially important as a food fish.
Chionodraco hamatus is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is found in the Southern Ocean.
The blackfin icefish, also known as the Scotia Sea icefish, is a species of crocodile icefish belonging to the family Channichthyidae. The blackfin icefish belongs to Notothenioidei, a suborder of fishes that accounts for 90% of the fish fauna on the Antarctic continental shelf. Icefishes, also called white-blooded fishes, are a unique family in that they are the only known vertebrates to lack haemoglobin, making their blood oxygen carrying capacity just 10% that of other teleosts. Icefishes have translucent blood and creamy white gills.
Chaenodraco wilsoni, the spiny icefish, is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is native to the Southern Ocean. This species is the only known member of its genus. It is of minor interest to commercial fisheries.
Channichthys is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are native to the Southern Ocean.
Chionobathyscus dewitti is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. This species is found in the Southern Ocean.
Chionodraco is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are found in the Southern Ocean.
Cryodraco is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are found in the Southern Ocean. While C. antarcticus has minor commercial importance, C. atkinsoni and C. pappenheimi are of no interest to commercial fisheries.
Dacodraco is a monotypic genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes, its only member is Dacodraco hunteri. This species is found in the Southern Ocean.
Jonah's icefish is a benthopelagic species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is the only member of the monotypic genus Neopagetopsis. It is found in the Southern Ocean at depths of from 20 to 900 metres. It has a circum-Antarctic distribution on the continental slope and continental shelf, with the northernmost records from the South Shetland and the South Orkney Islands.
Pagetopsis is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. The species in this genus are found in the Southern Ocean.
Pseudochaenichthys is a monotypic genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. Its only member is Pseudochaenichthys georgianus, the South Georgia icefish, which is found in the Southern Ocean.
The grey rockcod, also known as the grey notothen, stripe-eyes notothen or stripe-eyed rockcod, is a species of marine ray-finned fish belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean. The grey rockcod feeds mainly on macrozooplankton and is of minor importance to commercial fisheries. It is the only species in the genus Lepidonotothen.
Channichthys rhinoceratus, the unicorn icefish, is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is endemic to the Kerguelen-Heard Plateau in the Southern Ocean. It is a demersal species living from surface waters to depths up to 750 m (2,460 ft). It is considered by some researchers as the only species in the genus Channichthys.
Chionodraco myersi, the Myers's icefish, is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is found in the Southern Ocean.
Cryodraco atkinsoni is a bathydemersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is endemic to the waters of the eastern part of the Southern Ocean.
Gobionotothen acuta, the triangular rockcod or the triangular notothen, is a species of marine ray-finned fish belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the French Southern and Antarctic Lands, the Heard Islands and the Kerguelen Plateau in the Southern Ocean.
Notothenia cyanobrancha, the blue rockcod, bluegillnotothen, or bluegill rockcod, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Kerguelen and Heard Islands in the Southern Ocean.
| Authority control databases: National |
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