Common names from other countries
分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Holocephali
全头亚纲 (银鲛科) (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: hydro-, combining form of hydor (Gr.), water; lagos (Gr.), hare, i.e., “water rabbit,” probably referring to three pairs of tooth plates, which tend to protrude from the mouth like a rabbit’s incisors. (See ETYFish); trolli: In honor of American artist Ray Troll (b. 1954), Ketchikan, Alaska (USA), “one of the few true chimaeroid lovers of the world ... for his valiant efforts to increase ratfish awareness worldwide”. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 612 - 1707 m (Ref. 45071). 深水域
Western Pacific: New Caledonia and New Zealand.
西太平洋: 新加勒多尼亞與紐西蘭。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 112 cm TL 雄鱼/尚未辨别雌雄; (Ref. 45071); 120.4 cm TL (female); 最大体重: 8.8 kg (Ref. 122636)
简单描述
检索表 | 型态特徵 | 形态测量图
Body blue-gray with a dark line around the orbit and dark shadowing along edges of lateral-line canals. Snout pointed. Preopercular and oral lateral-line canals sharing a common branch. D1 concave with pale margin. Males with frontal tenaculum deeply curved, upturned distally with spines along dorsal upturned edge. Prepelvic tenacula deeply indented along distal margin. Pelvic claspers with pale fleshy distal lobes, divided distally for 1/3 their length, tips usually extending beyond distal edge of pelvic fins. Ventral caudal fin not deeply indented at its origin to form a separate anal fin.
身体蓝灰色的具有一个眼窝的周围黑色线条与深色的遮蔽沿着侧线管的边缘。 吻端尖的。 前鳃盖骨与口部的侧线管共用一个分枝。 D 1 凹的有灰白的边缘。 雄性有前的把钩深深地弯曲, 朝上的末梢部地和棘沿着背部的朝上边缘。 腹鳍前的把钩深深凹入的沿着末梢部的边缘。 腹鳍扣紧物有灰白的对于 1/3 他们的长度末梢部地被分开的肉质的末梢部的叶，顶端通常延伸超过腹鳍的末梢部边缘。 腹面尾鳍不深深地在它的起源切割成锯齿状形成一个分开的臀鳍。
Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205). Reported sexual maturity at 550-65.0 cm BDL or body length (Ref. 116866).
卵生的.(参考文献 205) 卵被包在角状的外型突起中。 (参考文献 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Oviparous (Ref. 205).西太平洋: 新加勒多尼亞與紐西蘭。
Didier, D.A. and B. Séret, 2002. Chimaeroid fishes of New Caledonia with description of a new species of Hydrolagus (Chondrichthyes, Holocephali). Cybium 26(3):225-233. (Ref. 45071)
CITES (Ref. 128078)
Not Evaluated
人类利用
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Estimates based on models
Preferred temperature (Ref.
115969): 3.4 - 6.9, mean 4.8 (based on 322 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00118 - 0.00673), b=3.10 (2.89 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Assuming Fec <100).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
