分類 / 名稱
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).
Taxonomic Remarks
Questionably a new species (Didier pers. obs. in Barnett et al., 2006: Ref. 57880).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
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
成熟度: 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
檢索表 | 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.
Body shape (shape guide): elongated.
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。
生命週期和交配行為
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: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 04 May 2024
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00331 (0.00137 - 0.00798), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.9 ±0.6 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Deepwater species with few large eggs.). |
釣魚的脆弱性 (Ref. 59153) |
High vulnerability (58 of 100). 🛈 |