分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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); ovicorrugatus: Name from Latin 'ovi' for egg; genitive singular of ovum) and 'corrugatus' or corrugated; referring to the corrugated egg cases (unique for the genus Apristurus); treated as an adjective..
Environment: milieu / climate zone / depth range / distribution range
生態学
海 深海魚; 深さの範囲 410 - 550 m (Ref. 128660). Subtropical
Indo-West Pacific: Australia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 46.7 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is distinguished by the following combination of characters: when alive/fresh, eyes with shiny white iris; head moderately long and relatively narrow, its length 23.8% LT, interorbital space 6.4% LT; snout moderately elongate, preoral length is 10.0% LT and preorbital length 10.9% LT; mouth wide, its width 9.5% LT; pelvic–anal space 5.9% LT; anal fin is large, base length 15.2% LT, posterior margin 11.5% LT; prepectoral length is relatively long, about 21.1% LT; labial furrows long, not confined to mouth corners, uppers are longer than lowers (3.8 vs. 2.4% LT); enlarged denticles absent on upper or lower caudal fin; duodenum of intestine moderately sized, intestinal spiral valves 15; monospondylous centra 35; precaudal-diplospondylous vertebrae 33; precaudal centra 68; females mature by 46.7 cm LT; egg case small (5.04-6/06 cm long), with 5-7 strong T-shaped ridges on dorsal and ventral surfaces (Ref. 128660).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
White, W.T., H.L. O'Neill, F. Devloo-Delva, K. Nakaya and S.P. Iglésias, 2023. What came first, the shark or the egg? Discovery of a new species of deepwater shark by investigation of egg case morphology. J. Fish. Biol. 2023:1-18. (Ref. 128660)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [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).
栄養段階 (Ref.
69278): 3.8 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
