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Heteroscymnoides marleyi Fowler, 1934

Longnose pygmy shark
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Heteroscymnoides marleyi
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) 棘鮫目 (Sleeper and dogfish sharks) > Dalatiidae (Sleeper sharks) 黑鮫科 (Sleeper sharks)
Etymology: Heteroscymnoides: -oides, Greek suffix meaning like, resembling, or having the form of: similar to Heteroscymnus (=Somniosus, now in Somniosidae). (See ETYFish);  marleyi: In honor of Natal fisheries officer Harold Walter Bell-Marley (1872-1945), to whom Fowler was “indebted” for many “interesting” South African fishes,” this shark being “another of his numerous discoveries”. (See ETYFish).
More on author: Fowler.

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

海洋 底中水层性; 深度上下限 0 - 502 m (Ref. 247). 热带; 14°S - 30°S

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

Southeast Atlantic: near Ascension Island. Western Indian Ocean: Durban, Natal, South Africa.
东南大西洋: 上升岛附近。 西印度洋: 德尔班,南非的纳塔尔。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 29.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5578)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 0. A cylindrical, dwarf dogfish shark with a long bulbous snout, small round eyes, and small gill slits; caudal fin paddle-shaped (Ref. 5578). Dark brown with conspicuous light-edged fins (Ref. 5578). Ventral surface covered with minute photophores (Ref. 6577).
一个圆筒形又矮小的狗鲨具有一个长的凸起吻,小的圆眼与小的鳃缝; 尾鳍桨状的.(参考文献 5578) 深褐色的有明显的边缘淡色的鳍.(参考文献 5578) 腹面覆盖着细小的发光器了。 (参考文献 6577)

生物学特性     字汇 (例如 epibenthic)

Probably oceanic (Ref. 5578). The holotype was caught off a beach, but a second specimen was taken in the Atlantic at night between the surface and 502 m (Ref. 247). Food unknown but may subsist on pelagic fish and invertebrates (Ref. 247). Probably ovoviviparous with very few young (Ref. 247).

可能大洋性.(参考文献 5578) holotype 被捕捉外海的一个海滩, 但是一件第二件标本在大西洋采集在晚上介于水表和 502 公尺.(参考文献 247) 食性未知但是可能捕食大洋性的鱼与无脊椎动物.(参考文献 247) 可能卵胎生有非常少的幼鱼.(参考文献 247)

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

Distinct pairing with embrace (Ref. 205).东南大西洋: 上升岛附近。 西印度洋: 德尔班,南非的纳塔尔。

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

世界自然保护联盟红皮书 (Ref. 125652)

  最不相关 (LC) ; Date assessed: 24 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 没有兴趣
FAO - Publication: search | FishSource |

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特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00143 - 0.00669), b=3.15 (2.95 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.1   ±0.4 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):  Low vulnerability (19 of 100).