分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Scymnodon: scymnus, an ancient name for some kind of shark, derived from a Greek word meaning young animal, cub or whelp; odon (Gr.), tooth, referring to large, triangular cutting teeth on lower jaw of S. ringens. (See ETYFish); ichiharai: In honor of marine biologist (specializing in whales) Tadayoshi Ichihara (d. 1981), Tokai University (Tokyo, Japan), who suggested that the authors study this shark. (See ETYFish).
More on authors: Yano & Tanaka.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海區的; 深度上下限 500 - 800 m (Ref. 31249). 深水域
Indo-West Pacific: Japan (Ref. 31249) and India (Ref. 118627).
西北太平洋: 駿河灣與日本的毗連水域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Ovoviviparous (Ref. 205).
卵胎生的.(參考文獻 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Distinct pairing with embrace (Ref. 205).西北太平洋: 駿河灣與日本的毗連水域。
Yano, K and S. Tanaka, 1984. Review of the deep sea squaloid shark genus Scymnodon of Japan, with a description of a new species. Jap. J. Ichthyol. 30(4):341-360. (Ref. 31249)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00168 - 0.00901), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (84 of 100).
