| Rouleina | |
|---|---|
 | |
| Softskin smooth-head (Rouleina attrita) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Alepocephaliformes |
| Family: | Alepocephalidae |
| Genus: | Rouleina Jordan, 1923 |
| Type species | |
| Xenodermichthys guentheri Alcock, 1892 [1] | |
| Synonyms [1] | |
Rouleina is a genus of slickheads. The genus is named for the ichthyologist Louis Roule. [2]
There are currently 10 recognized species in this genus: [3]
Slickheads, also known as nakedheads or smoothheads, are deep water fishes that belong to the family Alepocephalidae. They are most commonly found in the bathypelagic layer, which is approximately 3000m below the surface. They get their name from the lack of scales on their heads. Similarly, the scientific name is from the Greek ᾰ̓- (a-, "not"); λέπος (lepos, "scale"); and κεφαλή (kephalē, "head"). It has about 22 genera with ca. 96 species.
Diaphus is a genus of lanternfishes. It is the most species-rich lanternfish genus.
Bajacalifornia is a genus of slickheads. It was described in 1925 by Charles Haskins Townsend and John Treadwell Nichols on the basis of Bajacalifornia burragei which was discovered in 1911 during the deep sea expedition of the research vessel USS Albatross off the coast of Todos Santos Bay at the Baja California peninsula. In 1952 Ichthyologist Albert Eide Parr published a revision of this genus.
Alepocephalus is a genus of slickheads found in all oceans.
Asquamiceps is a genus of slickheads that occurs in all oceans. It is one of nineteen genera in the family Alepocephalidae.
Bathyprion, is a genus of deepwater marine ray-finned fish belonging to the family Alepocephalidae, the slickheads. Its only extant species is Bathyprion danae, the fangtooth smooth-head. This species is found in the Atlantic and western Pacific Oceans.
Bathytroctes is a genus of deepwater marine ray-finned fishes belonging to the family Alepocephalidae, the smooth-heads. These fishes are found in the deeper waters of the Oceans around the world..
Conocara is a genus of deepwater marine ray-finned fishes belonging to the family Alepocephalidae, the smooth-heads. These fishes are found in the deeper waters of the Oceans around the world.
Einara is a small genus of slickheads found in the deep waters of the oceans. They can grow to 22 cm (8.7 in) standard length
Leptoderma is a genus of slickheads found in the deep waters of the oceans.
Mirognathus is a monospecific genus of deepwater maine ray-finned fish belonging to the family Alepocephalidae, the slickheads. The only species in the genus is Mirognathus normani, the beaked slickhead or Norman's smooth-head, which is found in the north-east and western Atlantic Ocean, the western Indian Ocean and the western Pacific Ocean. This species grows to a standard length of 20 centimetres (7.9 in).
Narcetes is a genus of slickheads. It was formally described by Alfred William Alcock in 1890. It currently contains six described species.
Talismania is a genus of slickheads.
Xenodermichthys is a small genus of slickheads.
Stomias is a genus of barbeled dragonfishes. They live in the mesopelagic zone of all oceans and show diel vertical migration and sexual dimorphism (males are smaller, have larger eyes and larger postorbital photophores than females.
Bolinichthys is a genus of lanternfishes.
Lamprogrammus is a genus of cusk-eels.
The elongate smooth-head, also called the elongate slickhead, is a species of fish in the family Alepocephalidae.
Rouleina attrita, the softskin smooth-head or softskin slickhead, is a species of fish in the family Alepocephalidae.
Rouleina maderensis, the Madeiran smooth-head, is a species of fish in the family Alepocephalidae.
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