| Pagetopsis macropterus | |
|---|---|
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| P. macropterus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Channichthyidae |
| Genus: | Pagetopsis |
| Species: | P. macropterus |
| Binomial name | |
| Pagetopsis macropterus (Boulenger, 1907) | |
| Synonyms [1] | |
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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 macropterus was first formally described in 1907 as Champsocephalus macropterus by the Belgian-born British ichthyologist George Albert Boulenger with the type locality given as near Cape Armitage, Ross Island in Victoria Land. [2] When Charles Tate Regan described the genus Pagetopsis this was its type species by monotypy. [3] The specific name macropterus means "large finned" an allusion to the large dorsal and pelvic fins, especially those of juveniles. [4]
Pagetopsis macropterus has around 15 narrow dark bars, lighter at the center, on its grayish green body and dark stripes on its cheeks but has a whitish ventral area. It grows to a maximum length of 33 cm (13 in) and lives at depths of 5 to 655 m (16 to 2,149 ft). The dorsal fins contain 12-15 spines and 27-32 soft rays while the anal fin has 24-27 soft rays. It has a large mouth with the maxilla reaching a level with the front third of the eye and this has two rows of conical teeth in each jaw. The caudal fin is almost truncate but can be rounded. [5]
Pagetopsis macropterus has a circum-Antarctic distribution on the continental shelf and the South Shetland Islands. It is a demersal fish which occurs at depths between 5 and 655 m (16 and 2,149 ft). [1] The defense posture, noted in a study in 1969, is opening the mouth wide, expanding the corner of the mouth and the opercula, erecting the dorsal fin, holding the flared pectoral fins at a right angle towards the body, and bending the body into a semicircle. The same study suggested that this behavior was developed to deter predators such as the Weddell seal (which preys heavily on this species). [5] Adults feed on fishes and krill. It is of no interest to commercial fisheries. [1]
Bovichtus variegatus, the thornfish, is a species of marine ray-finned fish belonging to the family Bovichtidae, the temperate icefishes or thornfishes. It is endemic to New Zealand.
The painted notie, or painted 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.
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.
Prionodraco is a monotypic genus of marine ray-finned fish belonging to the family Bathydraconidae, the Antarctic dragonfishes, its only species is Prionodraco evansii. These fishes are native to the Southern Ocean.
Psilodraco is a monotypic genus of marine ray-finned fish belonging to the family Bathydraconidae, the Antarctic dragonfishes, its only species is Psilodraco breviceps. These fishes are native to the Southern 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.
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 longfin icedevil, also known as the threadfin pinhead, 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 where it can be found at depths down to 850 metres (2,790 ft). This species grows to a length of 42 centimetres (17 in) TL. This species is the only known member of its genus and is of no interest to commercial fisheries.
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 feed mainly on macrozooplankton and is of minor importance to commercial fisheries. It is the only species in the genus Lepidonotothen
The toad notie, or toad notothen, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Indian sector of 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 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.
Gvozdarus svetovidovi, the naked-head toothfish, is a species of marine ray-finned fish belonging to the family Nototheniidae, the notothens or cod icefishes. It is found in the Ross and Cooperation Seas, probably south of the Antarctic Polar Front from pelagic waters down to depths of 550 m (1,804 ft), though it is normally found in a pelagic environment.