分类 / 名称 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) > Squaliformes (Sleeper and dogfish sharks) > Somniosidae (Sleeper sharks)
Etymology: Somniosus: Latin for sleepy, reflecting Lesueur’s surmise that these sharks are slow or sluggish because of their relatively small fins (hence the name sleeper sharks) (See ETYFish); cheni: In honor of Wen-Jong Chen, Taitung Xin Gang District Fisherman’s Association, for contributions of chondrichthyan fish samples and research assistance with Taiwan and international research for over 30 years (See ETYFish).
Eponymy: Wen-Jong Chen, of the Taitung Xin Gang District Fisherman’s Association, was honoured for his contributions of shark samples and his assistance with Taiwanese and international shark research for over 30 years. (Ref. 128868), visit book page.
Etymology: Somniosus: Latin for sleepy, reflecting Lesueur’s surmise that these sharks are slow or sluggish because of their relatively small fins (hence the name sleeper sharks) (See ETYFish); cheni: In honor of Wen-Jong Chen, Taitung Xin Gang District Fisherman’s Association, for contributions of chondrichthyan fish samples and research assistance with Taiwan and international research for over 30 years (See ETYFish).
Eponymy: Wen-Jong Chen, of the Taitung Xin Gang District Fisherman’s Association, was honoured for his contributions of shark samples and his assistance with Taiwanese and international shark research for over 30 years. (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
海洋 深海底的; 深度上下限 500 - ? m (Ref. 123759).
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Northwest Pacific: Taiwan.
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
脊椎骨: 75 - 79. This species is distinguished from its congeners by the following set of characters: no anal fin; two spineless dorsal fins, first dorsal fin higher and larger than second dorsal fin; short lateral keels on the caudal peduncle, precaudal pits absent; caudal fin is asymmetrical and paddle-shaped, with a relatively short upper lobe and long lower lobe; rhomboid-shaped dermal denticles; teeth dissimilar in upper and lower jaws, upper-jaw teeth small with lanceolate, in 72 rows, lower-jaw teeth semioblique with low roots, in 28 rows; precaudal vertebrae 60-61, caudal vertebrae 15-18, total 75-78; number of turns in spiral valve 25-26 In mid-term embryo stage (12.8-15.0 cm TL); no teeth and dermal denticles; sexes identifiable; caudal keel present. Colouration: body light brown to yellow-grayish (Ref. 123759).
Cross section: oval.
Cross section: oval.
This species was collected in canyons surrounded by deep-sea longliner off eastern Taiwan at a depth greater than 500 m (Ref. 123759).
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Hsu, H.-H., C.-Y. Lin and S.-J. Joung, 2020. Somniosus (Rhinoscymnus) cheni sp. nov. A new species of sleeker shark (Squaliformes: Somniosidae) from Eastern Taiwan, with aspects of embryo biology. Zool. Stud. 59:48. (Ref. 123759)
CITES
Not Evaluated
对人类的威胁
人类利用
渔业: 没有兴趣
FAO - Publication: search | FishSource |
更多信息
解剖学
鳃区
大脑
耳石
鳃区
大脑
耳石
生理学
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
遗传学
基因组
遗传学
异质性
遗传率
基因多样性
基因组
遗传学
异质性
遗传率
基因多样性
工具
特别资料
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网络资源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: 属, 种 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | 国家资料库 | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录
基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00389 (0.00170 - 0.00889), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
营养阶层 (参考文献 69278) |
3.5 ±0.4 se; based on size and trophs of closest relatives |
|
回复力 (参考文献 120179) |
中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
|
渔业脆弱性 (Ref. 59153) |
Moderate vulnerability (36 of 100). 🛈 |