分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus). (See ETYFish); exsanguis: ex (L.), out of; sanguis (L.), blood, i.e., bloodless or lifeless, referring to its characteristic pale coloration and flaccid body. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 560 - 1200 m (Ref. 40896). 深水域
Southwest Pacific: New Zealand.
西南太平洋: 紐西蘭。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 67.5, range 65 - 70 cm
Max length : 90.8 cm TL 雄魚/尚未辨別雌雄; (Ref. 40896)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Spiral valve turns 12-15; monospondylous vertebrae 40-47; nostril diameter always greater than inter-nostril width; posterior tip of pectoral fin anterior to mid-point of paired fin interspace; the distance between axils of dorsal fins about equal to the anal fin base length; area of the first dorsal fin equal to or slightly less than the area of second; anal fin low with a moderately long base. Pale gray to pale brown in color.
螺旋形的瓣膜轉 12-15; monospondylous 脊椎骨 40-47; 鼻孔直徑總是大於在鼻孔之間的寬度; 胸鰭的後頂端位於偶鰭間隙的中央點前; 那背鰭的葉腋大約等於臀鰭基底長度之間的距離; 第一背鰭的區域等於或者些微地少於第二個的區域; 臀鰭低的具有一個中等長度的基底。 灰白色到白褐色顏色。
Oviparous (Ref. 50449). Minimum depth from Ref. 58018.
卵生的.(參考文獻 50449)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).西南太平洋: 紐西蘭。
Sato, K., K. Nakaya and A.L. Stewart, 1999. A new species of the deep-water catshark genus Apristurus from New Zealand waters (Chondrichthyes: Scyliorhinidae). J. Roy. Soc. New Zealand 29(4):325-335. (Ref. 40896)
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Estimates based on models
Preferred temperature (Ref.
123201): 4.9 - 8.1, mean 7 °C (based on 26 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.0 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
