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) >
Triakidae (Houndsharks) > Triakinae
Etymology: Mustelus: Latin for weasel, an ancient name for sharks, possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks [strictly not tautonymous with Squalus mustelus Linnaeus 1758 since type was designated by the ICZN]. (See ETYFish); ravidus: Latin for grayish, referring to its pale-gray dorsal coloration. (See ETYFish).
More on authors: White & Last.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の漂泳性; 深さの範囲 106 - 300 m (Ref. 72460). Tropical, 116°E - 119°E
Eastern Indian Ocean: Western Australia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 68.3 cm TL オス/雌雄の選別がない; (Ref. 72460); 78.8 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is moderately-sized with the following set of characters: high preanal length to anal-caudal space (9.6-10.5), to dorsal-caudal space (6.1-6.8) ratios; dorsal fins are large, slightly raked back, base length of first dorsal fin (0.8-1) times anal-caudal space; claspers of adult males are relatively long with outer length about 10% TL, terminating only slightly short of anal fin origin; teeth in about 77/73 rows, exposed to a greater extent around symphysis of lower jaw when mouth closed; 90-91 precaudal vertebral centra; 35-37 monospondylous centra; narrow white tip and thin pale margin on first dorsal fin, distinct dusky tip on second
dorsal fin and distinct black tip on terminal caudal lobe (Ref. 72460).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
White, W.T. and P.R. Last, 2006. Description of two new species of smooth-hounds, Mustelus widodoi and M. ravidus (Carcharhiniformes: Triakidae) from the western central Pacific. Cybium 30(3):235-246. (Ref. 72460)
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
Preferred temperature (Ref.
123201): 14.4 - 22.1, mean 19.9 °C (based on 22 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00105 - 0.00478), b=3.14 (2.97 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
