分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (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); longicephalus: longus (L.), long; cephalus, from kephale (Gr.), head, about ¼ of total length. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 680 - 950 m (Ref. 97621). 深水域; 39°N - 22°S
Indo-West Pacific: Seychelles, Japan, East China Sea, Philippines, and Australia. New specimens were caught off western New Caledonia (Coriolis Bank, Lansdowne Bank, Lord Howe Ridge and Fairway Ridge) and off Mozambique (Ref. 53905).
印度-西太平洋: 塞锡尔群岛，日本，东中国海，菲律宾与澳洲。 新的标本被捕捉外海的新加勒多尼亚 (科里奥利浅堆， Lansdowne 浅堆，罗得豪岛脊与航路脊) 西部与莫桑比克外海。 (参考文献 53905)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 51.0 range ? - ? cm
Max length : 60.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 559)
背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 0. Grey-black, without conspicuous markings (Ref. 244).
灰黑色的, 没有显着的斑纹.(参考文献 244)
Inhabits deep water, probably near the bottom (Ref. 11146). Oviparous (Ref. 50449). First record of a cartilaginous fish manifesting rudimentary hermaphroditism (Ref. 53905). Biology little known (Ref. 6871).
栖息于深水域, 可能在底部的附近.(参考文献 11146) 卵生的.(参考文献 50449) 第一个软骨鱼的记录显示不发达的雌雄同体性.(参考文献 53905) 生物学特性知道的很少.(参考文献 6871)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). First record of a cartilaginous fish manifesting hermaphroditism which is further classified as rudimentary hermaphroditism (Ref. 53905).印度-西太平洋: 塞锡尔群岛，日本，东中国海，菲律宾与澳洲。 新的标本被捕捉外海的新加勒多尼亚 (科里奥利浅堆， Lansdowne 浅堆，罗得豪岛脊与航路脊) 西部与莫桑比克外海。 (参考文献 53905)
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
人类利用
渔业: 低经济
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Estimates based on models
Preferred temperature (Ref.
123201): 5.2 - 7.4, mean 6 °C (based on 99 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).
营养阶层 (Ref.
69278): 3.9 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
