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Lycenchelys

From Wikipedia, the free encyclopedia

Lycenchelys
Lycenchelys verrillii
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Zoarcidae
Subfamily: Lycodinae
Genus: Lycenchelys
Gill, 1884
Type species
Lycodes muraena
Synonyms[1]

Lycenchelys is a genus of marine ray-finned fishes belonging to the family Zoarcidae, the eelpouts. The genus has almost cosmopolitan distribution.[2]

Taxonomy

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Snakehead eelpout

Lycenelchys was first proposed as a genus in 1884 by the American ichthyologist Theodore Gill with Lycodes muraena being designated as the type species in 1920 by David Starr Jordan,[1][3] this species was originally described by the Norwegian zoologist Robert Collett in 1878 with its type locality given as 325 km (202 mi) west-southwest of Bodø in Norway, at a depth of 640 m (2,100 ft).[4] The genus is classified in the subfamily Lycodinae, one of four subfamilies in the family Zoarcidae, the eelpouts.[5]

Species

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Lycenchelys contains the following species:[6]

Etymology

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Lycenchelys is a combination of lyc, a reference to the genus Lycodes and enchelys, the Greek word for "eel". i.e. similar to Lycodes but with a more elongated eel-like shape.[7]

Characteristics

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Lycenelchys are regarded as derived Lycodine eelpouts which are separated from other Lycodine genera by a number of oseological characters.[3] They can be diagnosed by having between 6 and 10 suborbital bones and a cephalic sensory canal with between 6 and 10 pores. The pterygiophore of the first dorsal fin ray is associated with the second to the 21st vertebrae and there can be up to 16 free pterygiophores, or there may be none. There is a weak series of palatopterygoids, a weak oral valve and pseudobranch. They may or may not have pelvic fins, vomerine teeth and palatine teeth. Scales, the pyloric caeca and lateral line or lines are all present.[8] The species with the greatest published length is Lycenchelys albomaculata, with a standard length of 43.8 cm (17.2 in), while the lowest published length is that of Lycenchelys peruana with a maximum total length of 10.5 cm (4.1 in).[6]

Distribution and habitat

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Lycenchelys is a cosmopolitan genus with species in all oceans, they are found in continental slope and abyssal habitats. They are rare or absent from the far northern Arctic, the eastern Atlantic and the tropical Indian Oceans.[8]

References

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  1. ^ a b c Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Lycodinae". Catalog of Fishes. California Academy of Sciences. Retrieved 4 November 2022.
  2. ^ "Lycenchelys Gill, 1884". www.gbif.org. Retrieved 1 March 2021.
  3. ^ a b M. Eric Anderson (1995). "The eelpout genera Lycenchelys Gill and Taranetzella Andriashev (Teleosti:Zoarcidae) of the Eastern Pacific with descriptions of nine new species". Proceedings of the California Academy of Sciences. 4. 49 (2): 55–113.
  4. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Lycenchelys". Catalog of Fishes. California Academy of Sciences. Retrieved 4 November 2022.
  5. ^ Anderson, M. E. and V. V . Fedorov (2004). "Family Zoarcidae Swainson 1839 — eelpouts" (PDF). California Academy of Sciences Annotated Checklists of Fishes. 34.
  6. ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Lycenchelys". FishBase. June 2022 version.
  7. ^ Christopher Scharpf & Kenneth J. Lazara, eds. (6 May 2022). "Order Perciformes Suborder Cottoidea: Infraorder Zoarcales: Family: Zoarcidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 6 November 2022.
  8. ^ a b M. Eric Anderson (1994). "Systematics and Osteology of the Zoarcidae (Teleostei: Perciformes)". Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology. 60.