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Apristurus bucephalus White, Last & Pogonoski, 2008 Bighead catshark |
| Family: | Pentanchidae (Deepwater catsharks) | |||
| Max. size: | 67.5 cm TL (female) | |||
| Environment: | bathydemersal; marine; depth range 1030 - 1140 m | |||
| Distribution: | Eastern Indian Ocean: Western Australia. | |||
| Diagnosis: | This moderately-large species has the following characters: labial furrows of upper and lower subequal in length; relatively short preorbital snout; very robust head, its width (at mouth corners) 13.9% TL; large mouth, its width 11.1% TL; large orbit, its length 3.7% TL; relatively long length of prepectoral and prepelvic; first dorsal fin is slightly smaller than second one, its origin well forward of pelvic fin insertion; tall anal fin, short based, triangular in shape; widely spaced dermal denticles, moderately large, deciduous, with long medial cusps; species size to at least 67.5 cm TL; uniformly medium yellowish brown body and fins ; about 66 teeth rows in upper jaw, about 55 rows in lower jaw; adult female teeth with 5 cusps, 1 very long medial cusp, 2 much shorter inner lateral cusps, 2 much shorter outer lateral cusps situated anteriorly to inner lateral cusps; 35 monospondylous vertebrae; 26 diplospondylous precaudal vertebrae; about 108 total vertebrae (Ref. 76944). | |||
| Biology: | ||||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 17 February 2015 Ref. (130435) | |||
| Threat to humans: | harmless | |||
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