Dolloidraco | |
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Lateral view | |
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Ventral view | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Perciformes |
Family: | Artedidraconidae |
Genus: | Dolloidraco Roule, 1913 |
Species: | D. longedorsalis |
Binomial name | |
Dolloidraco longedorsalis Roule, 1913 | |
Dolloidraco is a monotypic genus of marine ray-finned fish, its only known species being Dolloidraco longedorsalis, belonging to the family Artedidraconidae, the barbeled plunderfishes. It is native to the Southern Ocean in the waters around Antarctica.
Dolloidraco was first formally described as a genus in 1913 by the French zoologist Louis Roule in his description of D. longedorsalis which had been collected on the French Antarctic Expedition led by Jean-Baptiste Charcot from 1904-1907. The type locality was given as Marguerite Bay and Jenny Island on the Antarctic Peninsula. [1] The generic name compounds Dollo, honouring the Belgian paleontologist Louis Dollo who published on Antarctic fishes, with draco, a reference to the related genus Artedidraco . The specific name is a compound of longi which means "long" and dorsalis meaning "dorsal". Roule did not explain this but it may be a reference to this taxon's taller, but not longer, dorsal fin in comparison with Artedidraco. [2]
Dolloidraco has a first dorsal fin which contains 3-4 spines and is located over the operculum, the second dorsal fin contains 22-25 soft rays while the anal fin has 14-16 soft rays. The caudal fin has 8-10 branched rays and the pectoral fin contains 16-18 fin rays. The head has a width which is roughly the same as their depth and the post temporal ridges are weakly developed. The snout is shorter than the diameter of the eye and the space between the eyes is narrow. The mental barbel, the barbel on the chin which characterises the barbeled plunderfishes, is tapered or expanded towards its tip. The upper lateral line has tubed scales at the head end and towards the caudal fin it normally has disc shaped scales, the middle lateral line consist of disc-shaped scales.. [3] This species attains a maximum total length of 13.7 cm (5.4 in). [4]
Dolloidraco is found in the Southern Ocean where it has been recorded from the Weddell Sea, Graham Land, Queen Mary Land and south Victoria Land. It is a bathydemersal species which is found at depths of 203 to 1,145 m (666 to 3,757 ft) in the sublittoral and continental shelf. [4] Their diet is dominated by errant polychaetes with gammaridean amphipods, isopods, sedentary polychaetes, and unidentified polychaetes eaten as secondary items. Calanoid copepods, unidentified crustaceans, cumaceans, hydroids, and mysids are consumed but are not important parts of the diet. [3]
The Artedidraconidae, barbeled plunderfishes, are a family of marine ray-finned fishes, notothenioids belonging to the Perciform suborder Notothenioidei. The family comprises four genera. These fishes are endemic to deep waters off Antarctica.
Harpagifer, the spiny plunderfishes is a genus of marine ray-finned fishes, belonging to the family Harpagiferidae, it is the only genus in this monotypic family. They are found in the Southern Ocean.
Artedidraco is a genus of marine ray-finned fishes belonging to the family Artedidraconidae, the barbeled plunderfishes. They are native to the Southern Ocean.
Histiodraco is a monotypic genus of marine ray-finned fish, its only known species being Histiodraco velifer, belonging to the family Artedidraconidae, the barbeled plunderfishes. It is native to the Southern Ocean and the waters around Antarctica.
Pogonophryne is a genus of marine ray-finned fishes belonging to the family Artedidraconidae, the barbeled plunderfishes. They are native to the Southern Ocean.
Mawson's dragonfish is a species of Antarctic dragonfish native to the Southern Ocean around Antarctica. It is found at depths of from 110 to 300 metres over the continental shelf. This species is the only known member of its genus.
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 ploughfish is a species of Antarctic dragonfish native to the Southern Ocean around Antarctica. It is found at depths of from 0 to 550 m over the Antarctic continental shelf. This species is the only known member of its genus.
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.
Vomeridens is a monotypic genus of marine ray-finned fish belonging to the family Bathydraconidae, the Antarctic dragonfishes, its only species is Vomeridens infuscipinnis. 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.
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.
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.
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.
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.
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.
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 trigramma is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It occurs in the southwestern Atlantic Ocean.