Eptatretus octatrema (Barnard, 1923)
Eightgill hagfish
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); octatrema: oct[o]- (L., okto in Gr.), eight; trema, hole, referring to eight gill apertures per side (See ETYFish).
More on author: Barnard.
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); octatrema: oct[o]- (L., okto in Gr.), eight; trema, hole, referring to eight gill apertures per side (See ETYFish).
More on author: Barnard.
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 46 - 73 m (Ref. 31276). 亞熱帶的; 35°S -
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Southeast Atlantic: known from the holotype taken from the Agulhas Bank, South Africa.
東南大西洋: 只有正模式標本取自了南非的 Agulhas 邊坡。
東南大西洋: 只有正模式標本取自了南非的 Agulhas 邊坡。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
Body shape (shape guide): eel-like.
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 ).東南大西洋: 只有正模式標本取自了南非的 Agulhas 邊坡。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Fernholm, B., 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
极度濒危 (CR) (B1ab(iii)); Date assessed: 10 November 2009
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
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遗传学
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基因组
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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 | 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 = 0.5000 [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). |
|
营养阶层 (参考文献 69278) |
4.0 ±0.7 se; based on size and trophs of closest relatives |
|
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). |
|
渔业脆弱性 (Ref. 59153) |
Low to moderate vulnerability (29 of 100). 🛈 |