Apristurus yangi White, Mana & Naylor, 2017
Yang’s longnose catshark
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Family:  Pentanchidae (Deepwater catsharks)
Max. size:  43.7 cm TL (female)
Environment:  bathydemersal; marine; depth range 630 - 786 m
Distribution:  Western Central Pacific: Papua New Guinea.
Diagnosis:  This long-snouted species is distinguished by the following set of characters: head long and narrow, head length 23.5-23.8% TL; interorbital space 5.8-6.7% TL; very elongate snout, preoral length 12.4-12.7% TL; preorbital length 12.6-12.9% TL; wide mouth, its width 7.9-8.6% TL; pelvic-anal space 3.2-4.0% TL; anal fin is relatively large, base length 14.9-15.4% TL; anal-fin posterior margin 11.0% TL; prepectoral length is relatively long, about 22.3-23.5% TL; labial furrows long and not confined to mouth corners, uppers 3.7-3.8% TL; absence of enlarged denticles on upper or lower caudal fin; duodenum of intestine very short, 8 intestinal spiral valves; tip of snout blackish; 32-33 monospondylous centra; 38 precaudal-diplospondylous vertebrae; precaudal centra 70-71; females mature to adult by 43.7 cm TL; egg case is small (about 5.9 cm long), with faint longitudinal striations (Ref. 116167).
Biology:  The pregnant female individual caught contained a single egg capsule (Ref. 116167).
IUCN Red List Status: Least Concern (LC); Date assessed: 21 November 2019 Ref. (124695)
Threat to humans:  harmless
Country info:   

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