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板鰓亜鋼(サメとエイ類) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Apristurus:a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus) (See ETYFish); investigatoris:-is, Latin genitive singular of: HMS Investigator station in Andaman Sea, where holotype was collected (See ETYFish). Eponymy: Named after the Royal Indian Marine Survey vessel Investigator, which made collections of marine fauna in the period 1884–1926. (Ref. 128868), visit book page.
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00172 - 0.00698), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
回復力 (参照 120179): 非常に低い, 14年以上の倍増期間の最小個体群 (Fec assumed to be <10).
漁業の脆弱性 (Ref. 59153): Low vulnerability (16 of 100). 🛈