FB-67922 http://www.fishbase.org/summary/SpeciesSummary.php?id=67922 Animalia Chordata Elasmobranchii Carcharhiniformes Scyliorhinidae Scyliorhinus Scyliorhinus cabofriensis Soares, Gomes & Carvalho, 2016 Narrowhead catshark 2016-04-14 2021-08-09 Kaschner, C.J., S. Weigmann and R. Thiel0 <i>Bythaelurus tenuicephalus</i> n. sp., a new deep-water catshark (Carcharhiniformes, Scyliorhinidae) from the western Indian Ocean. Zootaxa 4013(1):120-138. (Ref. 104913) Weigmann, S.0 Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. J. Fish Biol. 88(1):1-201. (Ref. 106604) Weigmann, S. and C.J. Kaschner0 <i>Bythaelurus vivaldii</i>, a new deep-water catshark (Carcharhiniformes, Scyliorhinidae) from the northwestern Indian Ocean off Somalia. Zootaxa 4263(1):097-119. (Ref. 114990) Georgeson, L., C.L. Rigby, T.J. Emery, M. Fuller, J. Hartog, A.J. Williams, A.J. Hobday, C.A.J. Duffy, C.A. Simpfendorfer, T. Okuda, I.C. Stobutzki and S.J. Nicol0 Ecological risks of demersal fishing on deepwater chondrichthyan populations in the Southern Indian and South Pacific Oceans. ICES Journal of Marine Science 77(5):1711-1727. (Ref. 137596) FB-DiagnosticDescr-67931 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2016-05-06 00:00:00 2017-11-15 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67931 This species is distinguished from its congeners by the following characters: slender head and snout, only slightly bell-shaped in dorsoventral view without distinct lateral indention (vs. distinctly bell-shaped snouts with a strong lateral indention anterior to outer nostrils); has broader claspers in adult males, the base width 2.1% TL (vs. 1.51.8% TL of congeners in the western Indian Ocean); further differs from B. clevai by having a smaller maximum size and a color pattern of fewer and smaller blotches, larger oral papillae, a shorter snout, and broader claspers without knob-like apex and with a smaller envelope and a subtriangular (vs. subrectangular) exorhipidion; differs from B. hispidus by having a longer snout, a longer dorsal-caudal space, broader clasper without knob-like apex, and fewer vertebral centra; differs from B. lutarius by having a smaller maximum size and has a blotched (vs. largely plain) coloration, numerous (vs. lacking) oral papillae, shorter anterior nasal flaps, a longer caudal fin, a shorter pelvic anal space, and shorter and broader claspers (Ref. 104913). Kaschner, C.J., S. Weigmann and R. Thiel 2015 <i>Bythaelurus tenuicephalus</i> n. sp., a new deep-water catshark (Carcharhiniformes, Scyliorhinidae) from the western Indian Ocean. Zootaxa 4013(1):120-138. (Ref. 104913) FB-Distribution-67931 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2016-05-06 00:00:00 2025-11-05 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67931 Western Indian Ocean: off Tanzania and Mozambique. Kaschner, C.J., S. Weigmann and R. Thiel 2015 <i>Bythaelurus tenuicephalus</i> n. sp., a new deep-water catshark (Carcharhiniformes, Scyliorhinidae) from the western Indian Ocean. Zootaxa 4013(1):120-138. (Ref. 104913) FB-TrophicStrategy-67931 http://purl.org/dc/dcmitype/Text text/html Jasper Mendoza 2025-06-24 00:00:00 2025-06-24 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ tenuicephalus Caught using demersal trawl (Ref. 137596). Georgeson, L., C.L. Rigby, T.J. Emery, M. Fuller, J. Hartog, A.J. Williams, A.J. Hobday, C.A.J. Duffy, C.A. Simpfendorfer, T. Okuda, I.C. Stobutzki and S.J. Nicol 2020 Ecological risks of demersal fishing on deepwater chondrichthyan populations in the Southern Indian and South Pacific Oceans. ICES Journal of Marine Science 77(5):1711-1727. (Ref. 137596) FB-Size-67931 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2016-05-06 00:00:00 2021-12-07 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67931 300 cm TL (male/unsexed; (Ref. 106604)) Weigmann, S. 2016 Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. J. Fish Biol. 88(1):1-201. (Ref. 106604) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-67931 http://purl.org/dc/dcmitype/Text text/html Estelita Emily Capuli 2016-05-06 00:00:00 2021-12-07 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=67931 pelagic-oceanic; marine; depth range 463 - 550 m (Ref. 106604) Weigmann, S. 2016 Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. J. Fish Biol. 88(1):1-201. (Ref. 106604)