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: Lampripterygii
Superordo: Lampridiomorpha
Ordo: Lampridiformes
Familia: Lophotidae
Genera: Eumecichthys - Lophotus
References
Froese, R. and D. Pauly. Editors. 2006. FishBase, version (02/2006). [1]
Crestfishes, family Lophotidae, are lampriform fishes found in most oceans.[5] It consists of two extant[5][6] and four extinct genera.[1]
They are elongated, ribbon-like fishes, silver in color, found in deep tropical and subtropical waters worldwide. Their scientific name is from Greek lophos meaning "crest" and refer to the crest (part of the dorsal fin) that emerges from the snout and head; this structure gives them their other name of unicorn fishes.
The extant genera all possess ink sacs that open into their cloacae from which they can produce a cloud of black ink when threatened (as in many cephalopods).[7]
Genera
| Genus | Image |
|---|---|
| Eumecichthys | 
Unicorn crestfish (E. fiski) |
| Lophotus | 
Crested bandfish (L. guntheri) |
| †Babelichthys | 
†Babelichthys olneyi |
| †Eolophotes | 
†Eolophotes lenis |
| †Protolophotus | 
†Protolophotus elami |
| †Oligolophotes | 
†Oligolophotes fragosus |
References
Davesne, D. (2017). "A fossil unicorn crestfish (Teleostei, Lampridiformes, Lophotidae) from the Eocene of Iran". PeerJ. 5: e3381. doi:10.7717/peerj.3381. PMC 5493034. PMID 28674642.
Daniltshenko, P. G. (1980). "Iskopayemyye kostistyye ryby SSSR [Fossil bony fishes of the USSR]". Trudy Paleontologicheskogo Instituta, Akademiya Nauk CCCP. 178.
Walters, V. (1957). "Protolophotus, a new genus of allotriognath fish from the Oligocene of Iran". Copeia. 1 (1): 60–61. doi:10.2307/1440530. JSTOR 1440530.
Bannikov, A. F. (1999). "A review of fossil Lampridiformes (Teleostei) finds with a description of a new Lophotidae genus and species from the Oligocene of the northern Caucasus". Paleontological Journal. 33: 68–76.
Froese, Rainer; Pauly, Daniel (eds.). "Family Lophotidae". FishBase. November 2014 version.
Nelson, J. S. (2006). Fishes of the World (4 ed.). Hoboken, NJ: John Wiley & Sons. p. 229. ISBN 978-0-471-25031-9.
Honma, Yoshiharu; Ushiki, Tatsuo; Takeda, Masaei (Feb 1999). "Histology of the ink tube and its associated organs in a unicornfish, Eumecichthys fiskii (Lampridiformes)". Ichthyological Research. 46 (1): 19–25. Bibcode:1999IchtR..46...19H. doi:10.1007/BF02674944. S2CID 25284408.
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