Dichichthys albimarginatus, Whitetip bristle shark

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相关物种
- 物种在
  Dichichthys
- 物种在
  Dichichthyidae
- - 分类 -
- Dichichthyidae
- Carcharhiniformes
- Myxini
- Chordata
- Animalia

Dichichthys albimarginatus (Séret & Last, 2007)

Whitetip bristle shark

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Dichichthys albimarginatus
Male picture by Séret, B./Last, P.R.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Myxini 盲鳗纲 (丑鱼) (hagfishes) > Carcharhiniformes (Ground sharks) > Dichichthyidae ()
Etymology: Dichichthys: Name from the combination of the Greek 'dicho'- meaning 'to branch in two' and 'ichthys' for 'fish', with this genus being intermediate between the Galeus-Parmaturus complex and Apristurus; albimarginatus: albus (L.), white; marginatus (L.), bordered, referring to broad white margins on posterior fins (See ETYFish).
More on authors: Séret & Last.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋深海底的; 深度上下限 590 - 732 m (Ref. 74543).

分布国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Western Pacific: New Caledonia and possibly Papua New Guinea.

大小 / 重量 / 年龄

Maturity: L_m ? range ? - ? cm
Max length : 57.7 cm TL 雄鱼/尚未辨别雌雄; (Ref. 74543)

简单描述检索表 | 型态特徵 | 形态测量图

This scyliorhinid catshark is characterized by the following: a soft body with velvet-like skin of large tricuspidate denticles; color plain pale to medium brown; posterior margins of the dorsal, caudal and anal-fins are distinctly white-edged; upper and lower anterior caudal fin margins with pronounced caudal crests, the denticles on crests are greatly enlarged; teeth are mainly tricuspidate with greatly elongate median cusps, in 92 rows in both jaws; the first dorsal fin is slightly behind middle of back, the pelvic fins slightly in front of mid-body, prepelvic length 47% TL; vent at mid-length, pre-vent length 50% TL; relatively short snout, prenarial length 3.7% TL; short mouth, length 3.7% TL; short labial furrows, 1.7-2.0% TL, lower furrows subequal in length to upper furrows; head depressed and is shorter than abdomen, length 19.2% TL, pectoral-pelvic length 24.8% TL; second dorsal fin is larger than first, anterior margins of first 8.7% and second dorsal fin 10.4% TL; subterminal caudal lobe relatively small, subterminal margin length 3.3% TL, terminal margin length 3.8% TL; 43 monospondylous centra; 95 precaudal centra, 136 total (Ref. 74543).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

White, W.T., A.L. Stewart, H.L. O’Neill and G.J.P. Naylor, 2024. Dichichthyidae, a new family of deepwater sharks (Carcharhiniformes) from the Indo–West Pacific, with description of a new species. Fishes 2024, 9, 121. (Ref. 130868)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

最不相关 (LC) ; Date assessed: 19 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

人类利用

渔业: 没有兴趣

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

营养阶层 (Ref. 69278): 3.9 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (43 of 100).

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