分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gadiformes (Cods)
鱈形目 (Cods) >
Macrouridae (Grenadiers or rattails)
鼠尾鱈科 (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: Jordan & Gilbert.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 220 - 810 m (Ref. 41299). 深水域
Western Pacific: southern Japan to the Philippines.
西太平洋: 日本南部到菲律賓。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 559)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished by the following characters: pelvic fin rays 11 (rarely 12); pectoral fin rays 13-15; projecting snout, 20-25% HL; no barbel; moderate orbit diameter, 30-33% HL; infraorbital width 13-15% HL; moderately long preopercular supporter, with obtuse angle at rear margin, 3-5% HL; 20-26 gill rakers; ventral striae reaching to ½ distance from pelvic fin bases to periproct; otolith has moderately high predorsal lobe, with colliculi separated, widely placed across collum, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 1.05-1.1; total colliculum length to pseudocolliculum length (TCL:PCL), 2.4-2.6 (Ref. 98298).
身體非常細長的, 頭部低的, 子方骨橫切面，寬度在眼窩的前邊緣深地大約等寬於。 吻相當長的, 在一個點尖中的終端前面地與突出的超過嘴對於距離些微地少於眼窩的 1/2 直徑。 眼窩小的, 子圓形的。 嘴大的﹐側面的﹐和非常地斜的。 沒有觸鬚。 鱗片大而細又裸露的區域具有非常排列成梅花狀排列的小又弱的小刺, 那些在胸部，腹面與腋窩的窩上完全圓形。 正好在臀鰭前面的排洩孔而且前面有一個長的發光器官。 二個外部的透鏡出現在常數位置, 前面的在排洩孔正前方為距離朝腹面中央線進攻超過腹鰭基底些微少於 1/2 眼窩的直徑, 與後面那個，大於先前者了。 (參考文獻 54421)
Minimum depth from Ref. 26282.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
西太平洋: 日本南部到菲律賓。
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
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Estimates based on models
Preferred temperature (Ref.
123201): 6.9 - 13, mean 9.3 °C (based on 172 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00111 - 0.00431), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.40 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
