| Cryodraco atkinsoni | |
|---|---|
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| Holotype of Cryodraco atkinsoni | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Channichthyidae |
| Genus: | Cryodraco |
| Species: | C. atkinsoni |
| Binomial name | |
| Cryodraco atkinsoni Regan, 1914 | |
| Synonyms [1] | |
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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.
Cryodraco atkinsoni was first formally described in 1914 by the English ichthyologist Charles Tate Regan with the type locality given as the Ross Sea in the Southern Ocean where it had been collected by the Terra Nova Expedition. [1] Some authorities treat this taxon as a synonym of C. antarcticus . [2] However, recent morphological [3] and molecular analyses have found that this species is a distinct species from C. anatarcticus. [4] The specific name honours Edward Leicester Atkinson who was the surgeon on the Terra Nova Expedition. [5]
Cryodraco atkinsoni has up to 10 dark bars on each side of its body with dark spots present on its head, and is distinguished from congener Cryodraco antarcticus by being much smaller having a maximum total length of 29.3 cm (11.5 in) compared to maximum total length of 39.3 cm (15.5 in). The first dorsal fin is blackish and the dusky-colored pelvic fins are elongated. [6] The dorsal fins contain 3 spines and 42 soft rays while the anal fin has 46 soft rays. [7]
Cryodraco atkinsoni is found in the Southern Ocean where it confined to the waters of the eastern Antarctic. [3] It is a bathydemersal species which is found as deep as 296 m (971 ft). [7] This predatory species feeds on fishes and krill. [6]
Cryodraco atkinsoni is of no importance to commercial fisheries. [7]
The Antarctic silverfish, or Antarctic herring, 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 and the only truly pelagic fish in the waters near Antarctica. It is a keystone species in the ecosystem of the Southern Ocean.
Bovichtidae, the temperate icefishes or thornfishes, is a family of marine ray-finned fishes, classified in the suborder Notothenioidei of the order Perciformes. They are native to coastal waters off Australia, New Zealand, and South America.
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.
Champsocephalus is a genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. They are native to the Southern Ocean.
Acanthodraco is a monotypic genus of marine ray-finned fish belonging to the family Bathydraconidae, the Antarctic dragonfishes, its only species is DeWitt’s dragonfish. They are found in the Southern Ocean and the southeastern Pacific Ocean.
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 is a monotypic genus of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes, its only member is Chionobathyscus dewitti. 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 emerald rockcod, also known as the emerald 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 Oceanwhere it is acommercially important species.
Cryodraco antarcticus, the long-fingered icefish, is a demersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It occurs only in deep waters of the Southern Ocean.
Pagetopsis macropterus species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. This species is found in the Southern Ocean.
Pagetopsis maculata is a species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It is found in the Southern Ocean. It is of no interest to commercial fisheries.
Chionodraco myersi, the Myer'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 pappenheimi is a bathydemersal species of marine ray-finned fish belonging to the family Channichthyidae, the crocodile icefishes. It occurs in the Southern Ocean.