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); matallanasi: In honor of Jesús Matallanas Garcia, University of Barcelona (Spain), for his “extensive work and tireless dedication to ichthyology” (See ETYFish).
Eponymy: Jesús Matallanas Garcia is a Spanish ichthyologist and Professor in the Faculty of Biosciences at the University of Barcelona. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 416 - 736 m (Ref. 52554). 亞熱帶的; 23°S - 31°S (Ref. 52554)
Southwestern Atlantic: Brazil.
大西洋西南部: 巴西。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 30 - ? cm
Max length : 69.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 52554); 37.8 cm OT (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Diagnosis: Differs from its congeners in having an irregular brown coloration with reticulations and spots over the body; ventral surface whitish, including pectoral bases; proximal margin of the second dorsal fin whitish; tooth plates striped and bicolor, yellowish and gray; length of dorsal fin spine equal to or slightly greater than head length; pectoral fin notably long, its tip extending beyond posterior margin of pectoral fin base; upper margin of second dorsal fin notably concave at middle region of second dorsal fin base; minimum height of second dorsal fin less than half of maximum height (located at points anterior and posterior to middle region of fin); eye length slightly smaller than preorbital length (Ref. 52554).
Female maximum length given as precaudal length (PCL). Inhabits deep-reefs on the continental slope, usually deeper than 400 meters; with gorgonians, hard corals, tube sponges, crinoids, and ophiuroids. It also shares this habitat with other sharks Heptranchias perlo, Scyliorhinus haeckelii, Galeus mincaronei, Schroederichthys saurisqualus, Squalus sp., and the skate Gurgesiella dorsalifera (Ref. 52554).
雌性的最大長度被當作尾前椎長度 (PCL).。 深地棲息於-在大陸斜坡上的礁, 通常深度超過 400 公尺; 與柳珊瑚，堅硬的珊瑚，管海綿，海百合類動物與陽燧足。 它也與其他的鯊魚 Heptranchias perlo ， Scyliorhinus haeckelii 分享棲地, Galeus mincaronei, Schroederichthys saurisqualus, Squalus sp., 與魟魚 Gurgesiella dorsalifera.(參考文獻 52554)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
大西洋西南部: 巴西。
Soto, J.M.R. and C.M. Vooren, 2004. Hydrolagus matallanasi sp. nov. (Holocephali, Chimaeridae) a new species of rabbitfish from southern Brazil. Zootaxa 687:1-10. (Ref. 52554)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 6.4 - 10.2, mean 8.2 °C (based on 7 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00137 - 0.00798), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±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 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
