Eptatretus mccoskeri McMillan, 1999
McCosker's hagfish
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Eptatretus mccoskeri AquaMaps Data sources: GBIF OBIS |
![Image of Eptatretus mccoskeri (McCosker\](/images/thumbnails/gif/tn_MYXINIT0.gif "Image of Eptatretus mccoskeri (McCosker\")
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Myxini 盲鳗纲 (丑鱼) (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish); mccoskeri: In honor of American ichthyologist John E. McCosker (b. 1945), California Academy of Sciences, for collecting holotype and for his important contributions to marine biology (See ETYFish).
Eponymy: Dr John Edward McCosker (d: 1945) is an ichthyologist and evolutionary biologist who is Senior Scientist and first Professor of Aquatic Research at California Academy of Sciences, San Francisco. [...] (Ref. 128868), visit book page.
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish); mccoskeri: In honor of American ichthyologist John E. McCosker (b. 1945), California Academy of Sciences, for collecting holotype and for his important contributions to marine biology (See ETYFish).
Eponymy: Dr John Edward McCosker (d: 1945) is an ichthyologist and evolutionary biologist who is Senior Scientist and first Professor of Aquatic Research at California Academy of Sciences, San Francisco. [...] (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 居于水底的; 非迁移的; 深度上下限 155 - 215 m (Ref. 31788). 深水域
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Southeast Pacific: Galapagos Islands.
東南太平洋: 已知只來自加拉巴哥群島了。
東南太平洋: 已知只來自加拉巴哥群島了。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
This species is distinguished from its congeners, except Eptatretus poicilus by the following characters: gill apertures 8 pairs (7 in one specimen), well-spaced and arranged in a near straight line; a 3/3 multicusp pattern of teeth; differs from Eptatretus poicilus by its number of trunk pores 38-43 (vs. 45-50), by the number of total pores 69-75 (vs. 78-86) and by its colour pattern, with body purple to purplish brown (vs. body strongly mottled with pale brown, dark brown and white-beige) (Ref. 123790).
Body shape (shape guide): eel-like; Cross section: oval.
八个鳃囊与孔两边 , 最后的鳃孔在左边上与咽头管汇合; 12个复牙尖 (在每列中的 3个融合的尖头) ，单犬齿 36-39(9,9 到 10,10个单犬齿在每个前面的与 9,9 到 9,10 在每个后列中), 总尖头 48-51; 总黏液孔 72-74, 前鳃 14-15, 鳃的 7, 躯干 40-42 ，尾部 10-12. 腹面鳍褶不存在或退化的; 尾鳍的鳍褶有白色的边缘; 头部些微较淡超过身体颜色, 面对深色的除了小的白色环绕着嘴的区域; 触须全部白色的.(参考文献 31788)
Body shape (shape guide): eel-like; Cross section: oval.
八个鳃囊与孔两边 , 最后的鳃孔在左边上与咽头管汇合; 12个复牙尖 (在每列中的 3个融合的尖头) ，单犬齿 36-39(9,9 到 10,10个单犬齿在每个前面的与 9,9 到 9,10 在每个后列中), 总尖头 48-51; 总黏液孔 72-74, 前鳃 14-15, 鳃的 7, 躯干 40-42 ，尾部 10-12. 腹面鳍褶不存在或退化的; 尾鳍的鳍褶有白色的边缘; 头部些微较淡超过身体颜色, 面对深色的除了小的白色环绕着嘴的区域; 触须全部白色的.(参考文献 31788)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).東南太平洋: 已知只來自加拉巴哥群島了。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
McMillan, C.B., 1999. Three new species of hagfish (Myxinidae, Eptatretus) from the Galápagos Islands. Fish. Bull. 97:110-117. (Ref. 31788)
CITES
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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营养生态学
食物（猎物）
食性组成
食物消耗量
口粮
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食物（猎物）
食性组成
食物消耗量
口粮
捕食者
生态学
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人口动态
成长参数
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长度-重量关系
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体长-频率
质量转换
入添量
丰度
成长参数
最大年龄/尺寸
长度-重量关系
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体长-频率
质量转换
入添量
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游泳类型
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疾病与寄生虫
毒性（半数致死浓度）
遗传学
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基因多样性
基因组
遗传学
异质性
遗传率
基因多样性
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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 | 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
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系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00204 (0.00095 - 0.00440), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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营养阶层 (参考文献 69278) |
4.0 ±0.7 se; based on size and trophs of closest relatives |
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回复力 (参考文献 120179) |
低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100). |
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渔业脆弱性 (Ref. 59153) |
Low to moderate vulnerability (30 of 100). 🛈 |