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: Pentanchus: penta, from pente (Gr.), five; -anchus, perhaps an abridgement of branchos (Gr.), gill, referring to five pairs of branchial apertures (gill slits), unique among the group of sharks (hexanchoid) in which the authors erroneously believed this shark belonged. (See ETYFish); profundicolus: profundus (L.), deep; -colus (L.), dwelling in, referring to deepwater habitat (holotype taken at 1070 m). (See ETYFish).
More on authors: Smith & Radcliffe.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 673 - 1069 m (Ref. 47206). 深水域; 12°N - 8°N
Western Central Pacific: known from the holotype and only specimen taken from the Mindanao Sea, Philippines. Upon comparing, the holotypes of Apristurus herklotsi and this species are conspecific, thus, suggesting that Pentanchus is a senior synonym of Apristurus. But due to lack of verifiable specimens, herklotsi is tentatively retained in Apristurus.
中西太平洋: 只有正模式標本與僅有的標本取自了菲律賓民答那峨海。 一比較， Apristurus herklotsi 的 holotypes 與這種是同種的,因此, 顯示出 Pentanchus 是一個 Apristurus 的資深同種異名。 但是由於缺乏可檢驗的標本, herklotsi 是保留在暫時地中的 Apristurus.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 51.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 244)
背棘 (总数) : 0; 臀棘: 0. Only shark with 5 pairs of gill slits and one dorsal fin (Ref. 244). Head broadly flattened and spatulate, snout elongated and usually longer than mouth width. Labial furrows very long, uppers reaching upper symphysis (Ref. 244). No color pattern, uniformly dark brown (Ref. 244). Caudal fin with a distinct subterminal notch.
唯一的鲨鱼具有鳃缝与一个背鳍的 5 对。 (参考文献 244) 头部宽广地平的了与竹片状的, 吻延长与通常长度超过嘴宽度。 唇沟非常长的, 上面的达到上面的愈合处.(参考文献 244) 没有彩色斑纹, 全黑褐色.(参考文献 244) 尾鳍有一个明显的接近端位的凹槽。
A poorly known deep-water bottom-dwelling shark inhabiting insular slopes (Ref. 11146). Possibly oviparous (Ref. 50449).
一种少为人知的深海底栖鲨鱼居住于岛的斜坡.(参考文献 11146) 可能地卵生的.(参考文献 50449)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Oviparous (Ref. 50449).中西太平洋: 只有正模式標本與僅有的標本取自了菲律賓民答那峨海。 一比較， Apristurus herklotsi 的 holotypes 與這種是同種的,因此, 顯示出 Pentanchus 是一個 Apristurus 的資深同種異名。 但是由於缺乏可檢驗的標本, herklotsi 是保留在暫時地中的 Apristurus.
Nakaya, K. and B. Séret, 2000. Re-description and taxonomy of Pentachus profundicolus Smith & Radcliffe, based on a second specimen from the Philippines (Chondrichthyes, Carcharhiniformes, Scyliorhinidae). Ichthyol. Res. 47(4):373-378. (Ref. 47206)
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渔业: 没有兴趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [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): 4.1 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
