分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Hymenocephalus: Named for its transparent membrane-like head covering (‘‘hymen head’’) and fragile nature of head bones (Ref. 100825).
More on authors: Marshall & Iwamoto.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海区的; 深度上下限 400 - 900 m (Ref. 37108). 深水域
Western Central Atlantic: Straits of Florida, Gulf of Mexico, Caribbean Sea, and off Rio de Janeiro, Brazil.
西大西洋: 佛羅里達海峽，墨西哥灣，加勒比海與外海的巴西里約熱內盧。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 39.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 115012); 最大体重: 270.90 g (Ref. 115012)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 10 - 13. This species is distinguished by the following characters: pelvic fin rays 12-14 (usually 13-14); pectoral fin rays 14-17; projecting snout, 20-25% HL; short barbel, 4-5% HL, does not reach vertical through anterior margin of orbit; moderate orbit diameter, 28-35% HL; infraorbital width 12-15% HL; moderately long preopercular supporter, with angle at rear margin, 5-6% HL; 23-28 gill rakers; ventral striae reaching to ½ to ? distance from pelvic fin bases to periproct; otolith has moderately high predorsal lobe, with colliculi separated, closely placed across collum, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 1.05; total colliculum length to pseudocolliculum length (TCL:PCL), 2.6-2.8 (Ref. 98298).
双颚内的小尖的齿的狭带状。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
西大西洋: 佛羅里達海峽，墨西哥灣，加勒比海與外海的巴西里約熱內盧。
Cohen, D.M., A.W. Ebeling, T. Iwamoto, S.B. McDowell, N.B. Marshall, D.E. Rosen, P. Sonoda, W.H. Weed III and L.P. Woods, 1973. Fishes of the western North Atlantic. Part six. New Haven, Sears Found. Mar. Res., Yale Univ. (Ref. 37108)
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Estimates based on models
Preferred temperature (Ref.
123201): 7.1 - 13.9, mean 9.5 °C (based on 83 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00145 (0.00087 - 0.00240), b=3.20 (3.05 - 3.35), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
