Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Euteleosteomorpha
Subcohors: Neoteleostei
Infracohors: Eurypterygia
Sectio: Ctenosquamata
Subsectio: Acanthomorphata
Divisio/Superordo: Acanthopterygii
Subdivisio: Percomorphaceae
Series: Eupercaria
Ordo: Perciformes
Subordo: Cottoidei
Infraordo: Zoarcales
Familia: Zoarcidae
Subfamilia: Lycodinae
Genus: Lycodapus
Species (13): L. antarcticus – L. australis – L. derjugini – L. dermatinus – L. endemoscotus – L. fierasfer – L. leptus – L. mandibularis – L. microchir – L. pachysoma – L. parviceps – L. poecilus – L. psarostomatus
Name
Lycodapus Gilbert, 1890: 107
Gender: masculine
Type species: Lycodapus fierasfer Gilbert, 1890
Fixation: original designation [also monotypic]
Lycodapus fierasfer
References
Gilbert, C.H. 1890: A preliminary report on the fishes collected by the steamer Albatross on the Pacific coast of North America during the year 1889, with descriptions of twelve new genera and ninety-two new species. Proceedings of the United States National Museum, 13 (797): 49–126. BHL
Vernacular names
日本語: ヤワラゲンゲ属
Links
ION
Nomenclator Zoologicus
Lycodapus species list in FishBase,
Froese, R. & Pauly, D. (eds.) 2024. FishBase. World Wide Web electronic publication, www.fishbase.org, version 02/2024.
Lycodapus and its species (including synonyms) in Catalog of Fishes, Eschmeyer, W.N., Fricke, R. & van der Laan, R. (eds.) 2024. Catalog of Fishes electronic version.
ITIS
Lycodapus is a genus of marine ray-finned fishes belonging to the family Zoarcidae, the eelpouts. The species in this genus are found in the Pacific and Southern Oceans.
Taxonomy
Lycodapus was first proposed as a monospecific genus in 1890 by the American ichthyologist Charles Henry Gilbert when he described Lycodapus fierasfer[1] from the Gulf of California.[2] This genus is classified within the subfamily Lycodinae, one of 4 subfamilies in the family Zoarcidae, the eelpouts.[3] This genus is the sister taxon to Bothrocara, Bothrocarina and Lycogrammoides, and these four genera form a clade within the subfamily Lycodinae.[4]
Etymology
Lycodapus is a compound of the Greek word or "wolf", lykos, a reference to the type genus of the Lycodinae, and apous, which means "without feet", an allusion to the lack of pelvic fins in this genus.[5]
Species
Lycodapus contains the following species:[6]
Lycodapus antarcticus Tomo, 1982
Lycodapus australis Norman, 1937
Lycodapus derjugini Andriashev, 1935
Lycodapus dermatinus Gilbert, 1896
Lycodapus endemoscotus Peden & M. E. Anderson, 1978
Lycodapus fierasfer Gilbert, 1890
Lycodapus leptus Peden & M. E. Anderson, 1981
Lycodapus mandibularis Gilbert, 1915
Lycodapus microchir Schmidt, 1950
Lycodapus pachysoma Peden & M. E. Anderson, 1978
Lycodapus parviceps Gilbert, 1896
Lycodapus poecilus Peden & M. E. Anderson, 1981
Lycodapus psarostomatus Peden & M. E. Anderson, 1981
Characteristics
Lycodapus eelpouts have bodies which vary from slender to robust, the depth varying between 3.2% to 10% of the standard length. They may have transparent, gelatinous or opaque skin with no scales present. There are also no oral valve, occipital pores or pelvic fins. The only suborbital bone present is the lacrimal.[7] The gill slit is not joined to the isthmus to its rear. The flesh is gelatinous. In males the front teeth in the jaw are canine like. The pseudobranch, vomerine and palatine teeth are normally present. The pectoral fin has between 5 and 9 rays.[8] These are small eelpouts, some of which are mature at lengths of 120 mm (4.7 in).[7] The largest species is Lycodapus antatcticus which has a maximum published total length of 22.5 cm (8.9 in).[6]
Distribution and habitat
Lycodapus eelpouts are found mainly in the eastern Pacific Ocean with some species extending into the Bering Sea and western North Pacific Oceans and others extending into the Southern Ocean. They appear to be mesopelagic fishes with most specimens being collected in open nets. There is also some evidence for diel vertical migration which has been described for Lycodapus mandibularis.[8]
References
Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Lycodinae". Catalog of Fishes. California Academy of Sciences. Retrieved 7 November 2022.
Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Lycodapus". Catalog of Fishes. California Academy of Sciences. Retrieved 7 November 2022.
Anderson, M. E. and V. V. Fedorov (2004). "Family Zoarcidae Swainson 1839 — eelpouts" (PDF). California Academy of Sciences Annotated Checklists of Fishes. 34.
M. Eric Anderson; Duane E. Stevenson; Gento Shinohara (2009). "Systematic review of the genus Bothrocara Bean 1890 (Teleostei: Zoarcidae)". Ichthyological Research. 56 (2): 172–194. doi:10.1007/s10228-008-0086-6. S2CID 41632983.
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 7 November 2022.
Froese, Rainer and Pauly, Daniel, eds. (2022). Species of Lycodapus in FishBase. June 2022 version.
Anderson, M.E. (1990). "Zoarcidae". In O. Gon and P.C. Heemstra (eds.). Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. pp. 256–276. ISBN 9780868102115.
M. Eric Anderson (1994). "Systematics and Osteology of the Zoarcidae (Teleostei: Perciformes)". Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology. 60.
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