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) >
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); atami: Named for Atami, west coast of Sagami Bay, Japan, type locality (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 非迁移的; 深度上下限 300 - 536 m (Ref. 31276). 深水域
Northwest Pacific: Japan. Notoriously confused with other unnamed species around Japan (Ref. 31276).
西北太平洋: 日本。 眾人皆知的日本周圍與其他的未命名的種互相混淆了。 (參考文獻 31276)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 61.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 31276)
简单描述
检索表 | 型态特徵 | 形态测量图
Gill pouches (GP) 6 pairs with gill apertures closely spaced in a fairly straight line; 1-2 GP at end of dental muscle. Ventral aorta splitting at about GP 5-6. Fused cusps 3/3. Total cusps 47-52. Prebranchial slime pores 12-19. Total pores 71-78. Eyespots faint or absent. Ventral finfold low to vestigial (Ref. 51420).
鳃囊 (GP)6 对，鳃孔间隔很密的成一直线; 在牙齿肌肉的末端的 1-2 GP。 腹面大动脉于大约 GP 5-6 分离. 融合的尖头 3/3. 总尖头 47-52. 前鳃黏液孔 12-19. 总孔 71-78. 眼斑模糊或不存在。 腹面鳍褶低的到退化的.(参考文献 51420)
Attains over 50 cm TL (Ref. 559).
达到超过 50 公分TL 。 (参考文献 559)
Life cycle and mating behavior
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 ).西北太平洋: 日本。 眾人皆知的日本周圍與其他的未命名的種互相混淆了。 (參考文獻 31276)
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 2024-2)
人类利用
渔业: 商业性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00204 (0.00094 - 0.00444), 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 (Ref.
69278): 4.5 ±0.80 se; based on food items.
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): Moderate vulnerability (44 of 100).
