分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Myxini
盲鰻綱 (醜魚) (hagfishes) >
Myxiniformes (Hagfishes)
盲鰻目 (Hagfishes) >
Myxinidae (Hagfishes)
盲鰻科 (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); okinoseanus: -anus, Latin adjectival suffix that means, when attached to a name, “belonging to”: Okinose, Honshu Island, Japan, type locality (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 非遷移的; 深度上下限 300 - 1020 m (Ref. 31545). 深水域
Northwest Pacific: Taiwan (Ref. 5193) and southern Japan.
西北太平洋: 台灣 (參考文獻 5193) 與日本南部。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 80.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 559)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Gill pouches and gill apertures 8, with the latter arranged in a straight line, loosely spaced (Ref. 31545). Fused cusps 3/2, total cusps 44-49. Total slime pores 87-97. Eyespots present. Ventral finfold well developed. Caudal finfold well developed only from the tip of the tail dorsally to above origin of cloaca (Ref. 51420).
鰓囊與鰓孔 8, 與後者排列成一條直線了, 鬆弛地空間。 (參考文獻 31545) 融合的尖頭 3/2 ，總尖頭 44-49. 總黏液孔 87-97. 眼斑呈現。 腹面鰭褶發展良好的。 尾鰭的鰭褶發展良好的背面只從尾巴的尖端在泄殖腔的起源之上.(參考文獻 51420)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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: 台灣 (參考文獻 5193) 與日本南部。
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 13 November 2009
人類使用
漁業: 潛在的興趣
工具
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Estimates based on models
Preferred temperature (Ref.
123201): 7.3 - 13.6, mean 9.1 °C (based on 27 cells).
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).
營養階層 (Ref.
69278): 4.3 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
