| Nototheniops | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Nototheniidae |
| Genus: | Nototheniops Balushkin, 1976 |
| Type species | |
| Notothenia nybelini Balushkin, 1976 | |
Nototheniops is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes. The species in this genus are native to the Southern Ocean. [1]
Nototheniops Was first formally described as a subgenus of the genus Lepidonotothen in 1976 by the Soviet ichthyologist Arkady Vladimirovich Balushkin. [2] The genus has been considered to be monotypic by some authorities with N. larseni as the only species. Some authorities place this genus in the subfamily Nototheniinae, [3] but the 5th edition of Fishes of the World does not include subfamilies in the Nototheniidae. [4] The specific name is a compound of Notothenia , which this genus is closely related to and ops meaning “eyes” referring to its larger eyes. [5]
The recognized species in this genus are: [1] [6]
Nototheniops differs from the closely related Lepidonotothen and Lindbergichthys by having the area to front of the eye. the preorbital, and the snout scaled with unscaled eyes. There is a single lateral line, the upper one, which consists of tubed scales. The pectoral fins are roughly equal in length or longer than the pelvic fins. The first and second spines of the first dorsal fin are roughly equal in height but are taller than the third spine. The last spine of the first dorsal fin is connected to the first ray of the second dorsal fin by a membrane. There are 14-15 branch fin rays in the caudal fin. The front of the jaws have a band of small, sharp, conical teeth which reduces to a single series towards the rear of the jaws becoming uniserial, these back teeth and the outer row of the front teeth are a little bigger than the inner row. [3] The largest recorded total length in this genus is 24 cm (9.4 in) in N. larseni. [1]
Nototheniops are found in the Southern Ocean off the Antarctic Peninsula and in the subantarctic islands and seamounts, especially in the Atlantic and Indian sectors. They are found at depths between 30 and 550 m (98 and 1,804 ft). The larvae and juveniles are pelagic and it is thought they may have a long pelagic phase which helps dispersal, settling to a benthic lifestyle as adults. They feed on crustaceans such as krill, hyperiid amphipods and mysids, juveniles feeding on copepods. [3]
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.
Notothenia is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes with the species in this genus often having the common name of rockcod. They are native to the Southern Ocean and other waters around Antarctica.
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.
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.
Pagothenia is a genus of marine ray-finned fishes, belonging to the family Nototheniidae, the notothens or cod icefishes. These fishes occur in the Southern Ocean.
Gerlachea is a monotypic genus of marine ray-finned fish belonging to the family Bathydraconidae, the Antarctic dragonfishes, its only species is Gerlachea australis. It is found at depths of from 200 to 670 metres over the Antarctic continental shelf. This species is the only known member of its genus.
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 Ocean where it is a commercially important species.
Trematomus is a genus of marine ray-finned fishes, belonging to the family Nototheniidae, the notothens or cod icefishes. These fishes occur 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.
Cryothenia is a genus of marine ray-finned fishes, belonging to the family Nototheniidae, the notothens or cod icefishes. They are native to the Southern Ocean.
Gobionotothen is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes. They are native to the Southern Ocean.
Gvozdarus is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to 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.
Lindbergichthys is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes.
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.
Paranotothenia is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes. These fishes are native to the Southern Ocean.
Patagonotothen is a genus of marine ray-finned fishes, belonging to the family Nototheniidae, the notothens or cod icefishes. They are native to the southeast Pacific Ocean, southern Atlantic Ocean and the Southern Ocean.
Lindbergichthys nudifrons, the yellowfin rockcod, also known as the yellow notie or the gaudy notothen, is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Atlantic sector 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.
The stocky rockcod, also known as the bandtail notothen, is a species of marine ray-finned fish belonging to the family Nototheniidae, the notothens or cod icefishes. It is found in the Southern Ocean.