分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Holocephali
全頭亞綱 (銀鮫科) (chimaeras) >
Chimaeriformes (Chimaeras)
銀鮫目 (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
短鼻銀鮫科 (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); lusitanicus: -icus (L.), belonging to: Lusitania, ancient name of Portugal, where it was initially identified. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 ? - 1600 m (Ref. 55857). 深水域; 41°N - 36°N, 10°W - 8°W (Ref. 55857)
Northeast Atlantic: Portugal.
東北大西洋: 葡萄牙。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 95.4 cm OT 雄魚/尚未辨別雌雄; (Ref. 55857); 117.7 cm OT (female)
簡短描述
型態特徵 | 形態測量圖
Second dorsal fin margin straight; eyes smaller than one third of the head length. Supracaudal fin less deep or equal to subcaudal fin; eye diameter always <5 times in head length. Pectoral fin length from 1-9 to 2-3 times of pectoral fin width.
第二背鰭鰭邊緣直線; 眼小的超過三分之一頭長。 上尾部的鰭比較不深或等於子尾部的鰭; 眼直徑總是 <5 倍頭長。 胸鰭長度從 1-9 到 2-3 倍胸鰭寬度。
Maximal length type is pre supra caudal fin length.
Nothing is known on the biology of the species.
Body uniform rose to light brown with few small irregular light and dark spots; point of snout and region between the eye and the pectoral fin whitish; fins violet blue.
一無所知在此魚種的生物學特性上。
身體均勻的玫瑰色的到淡褐色有些小的不規則的淡色與深色的斑點; 在眼與胸鰭之間的吻與區域的點微白色的; 鰭紫羅蘭色藍色。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
東北大西洋: 葡萄牙。
Moura, T., I. Figueiredo, P. Bordolo-Machado, C. Almeida and L.S. Gordo, 2005. A new deep-water chimaerid species, Hydrolagus lusitanicus n. sp., from off mainland Portugal with a proposal of a new identification key for the genus Hydrolagus (Holocephali: Chimaeridae) in the north-east Atlantic. J. Fish Biol. 67(3):742-751. (Ref. 55857)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 12 September 2014
人類使用
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合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
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).
營養階層 (Ref.
69278): 3.9 ±0.6 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 (Deepwater species with few large eggs.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (55 of 100).