Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Infraclassis: Euselachii
Division/Cohort: Neoselachii
Subdivision/Subcohort: Batoidea
Superordo: Batomorphii
Ordo: Rhinopristiformes
Familia: Rhinobatidae
Subfamilia: Rhynchobatinae
Genus: Rhynchobatus
Species: R. australiae – R. cooki – R. djiddensis – R. immaculatus – R. laevis – R. luebberti – R. palpebratus – R. springeri
Name
Rhynchobatus Müller & Henle, 1837
Type species: Rhinobatus laevis Bloch & Schneider, 1801
Etymology: rhynchos (= snout), referring to pointed snout; batis (= Greek for a flat fish), usually applied to a skate or ray. (From: The ETYFish project)
Synonyms
Rhynchobatis [misspelling]
References
Last, P.R., Kyne, P.M. & Compagno, L.J.V. 2016. A new species of wedgefish Rhynchobatus cooki (Rhinopristiformes, Rhinidae) from the Indo–West Pacific. Zootaxa 4139(2): 233–247. DOI: 10.11646/zootaxa.4139.2.7. Reference page.
Last, P.R., Séret, B. & Naylor, G.J.P. 2016. A new species of guitarfish, Rhinobatos borneensis sp. nov. with a redefinition of the family-level classification in the order Rhinopristiformes (Chondrichthyes: Batoidea). Zootaxa 4117(4): 451–475. DOI: 10.11646/zootaxa.4117.4.1. Reference page.
Müller, J. & Henle, F. G. J.; 1837: Über die Gattungen der Haifische und Rochen nach einer ... mit Hrn. Henle unternommenen gemeinschaftlichen Arbeit über die Naturgeschichte der Knorpelfische. Bericht Akademie der Wissenschaften zu Berlin, 1837: 111–118.
Rhynchobatus is a group of rays commonly known as wedgefishes in the family Rhinidae. They are found in the tropical and subtropical Indo-Pacific with a single species (R. luebberti) in the eastern Atlantic. All species in this genus are assessed as Vulnerable or Endangered by IUCN.
The species are superficially similar and have often been confused. The various species can generally be separated by a combination of snout shape, vertebral count and exact colour (distribution of white spots, and presence/absence of a black spot at the base of the pectoral fin).[2] The largest species can reach about 3 m (10 ft) and are among the largest species of Rhinopristiformes, but the smallest reach less than one-third of that size.[3]
Species
There are currently seven recognized species in this genus:[4] In the past all the Indo-Pacific species have been confused with R. djiddensis, which as presently defined is restricted to the western Indian Ocean.[2]
Rhynchobatus australiae Whitley, 1939 (white-spotted wedgefish)
Rhynchobatus djiddensis (Forsskål, 1775) (giant guitarfish)
Rhynchobatus cooki Last, Kyne & Compagno, 2016 (roughnose wedgefish)[3]
Rhynchobatus immaculatus Last, H. C. Ho & R. R. Chen, 2013 (Taiwanese wedgefish)[2]
Rhynchobatus laevis (Bloch & J. G. Schneider, 1801) (smoothnose wedgefish)
Rhynchobatus luebberti Ehrenbaum, 1915 (African wedgefish)
Rhynchobatus mononoke Koeda, Itou, Yamada & Motomura, 2020 (Japanese wedgefish)[5]
Rhynchobatus palpebratus Compagno & Last, 2008 (eyebrow wedgefish)
Rhynchobatus springeri Compagno & Last, 2010 (broadnose wedgefish)
References
Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2008-02-23. Retrieved 2008-01-09.
Last, P.R., Ho, H.-C. & Chen, R.-R. (2013): A new species of wedgefish, Rhynchobatus immaculatus (Chondrichthyes, Rhynchobatidae), from Taiwan. Pp. 185-198 in: de Carvalho, M.R., Ebert, D.A., Ho, H.-C. & White, W.T. (eds.) : Systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan. Zootaxa, 3752 (1): 1–386.
Last, Kyne & Compagno (2016). A new species of wedgefish Rhynchobatus cooki (Rhinopristiformes, Rhinidae) from the Indo-West Pacific. Zootaxa 4139(2): 233-247. doi:10.11646/zootaxa.4139.2.7
Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Rhynchobatus in FishBase. July 2017 version.
Koeda, Keita; Itou, Masahide; Yamada, Morihiko; Motomura, Hiroyuki (2020-09-20). "Rhynchobatus mononoke, a new species of wedgefish (Rhinopristiformes: Rhinidae) from Japan, with comments on Rhynchobatus laevis (Bloch and Schneider 1801)". Ichthyological Research. doi:10.1007/s10228-020-00777-z. ISSN 1616-3915.
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