Elasmobranchi (squali e razze) (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); internatus: Latin for growing among or between, allusion not explained nor evident. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batipelagico. Deep-water
Northwest Pacific: East China Sea.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.3 cm TL maschio/sesso non determinato; (Ref. 39431); 41.9 cm TL (female)
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Nakaya, K. and K. Sato, 1999. Species grouping within the genus Apristurus (Elasmobranchii: Scyliorhinidae). p. 307-320 In Séret B. & J.-Y. Sire [eds]. Proc. 5th Indo-Pac. Fish Conf., Noumea, 1997. (Ref. 39431)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (32 of 100).