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)
(Ground sharks) > Pentanchidae
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); bucephalus: bu- (L.), prefix meaning large; cephalus, from kephale (Gr.), head, referring to its large, broad head. (See ETYFish).
More on authors: White, Last & Pogonoski.
Environment: milieu / climate zone / depth range / distribution range
; 海洋 深海底的; 深度上下限 1030 - 1140 m (Ref. 76944).
Eastern Indian Ocean: Western Australia.
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 67.5 cm TL (female)
型态特徵 | 形态测量图
This moderately-large species has the following characters: labial furrows of upper and lower subequal in length; relatively short preorbital snout; very robust head, its width (at mouth corners) 13.9% TL; large mouth, its width 11.1% TL; large orbit, its length 3.7% TL; relatively long length of prepectoral and prepelvic; first dorsal fin is slightly smaller than second one, its origin well forward of pelvic fin insertion; tall anal fin, short based, triangular in shape; widely spaced dermal denticles, moderately large, deciduous, with long medial cusps; species size to at least 67.5 cm TL; uniformly medium yellowish brown body and fins ; about 66 teeth rows in upper jaw, about 55 rows in lower jaw; adult female teeth with 5 cusps, 1 very long medial cusp, 2 much shorter inner lateral cusps, 2 much shorter outer lateral cusps situated anteriorly to inner lateral cusps; 35 monospondylous vertebrae; 26 diplospondylous precaudal vertebrae; about 108 total vertebrae (Ref. 76944).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
White, W.T., P.R. Last and J.J. Pogonoski, 2008. Apristurus bucephalus sp. nov., a new deepwater catshark (Carcharhiniformes: Scyliorhinidae) from southwestern Australia. pp. 105-111. In P.R. Last, W.T. White and J.J. Pogonoski (eds). Descriptions of new Australian chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. 365 p. (Ref. 76944)
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
Estimates based on models
Preferred temperature (Ref. 115969
): 3.2 - 4.9, mean 4.4 °C (based on 17 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00168 - 0.00717), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Subfamily-BS (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 to high vulnerability (47 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .