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); wayuu: Named for the Wayuu aborigines who live on the Guajira Peninsula of Colombia, type locality (See ETYFish).
Eponymy: These species are named after the Wayuu, an aboriginal people who live on the coastal region of the Guajira Peninsula (northern Colombia/north-west Venezuela), the type locality. (Ref. 128868), visit book page.
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 ? - 306 m (Ref. 41105). 深水域
Western Atlantic: known only from the Guajira coast near Puerto Bolivar, Colombia, Caribbean Sea.
西大西洋: 已知只來自在波多黎各，哥倫比亞，加勒比海附近的 Guajira 海岸了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 21.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 41105)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Ventral aorta bifurcated into left and right branches at gill pouches one (anteriormost pouch) or two versus bifurcated at the fifth or sixth gill pouches in congeners and P. springeri. Five branchial apertures arranged in a straight line; lengths of efferent branchial ducts unequal with the first duct about twice the length of the last duct. Last branchial duct confluent with pharyngocutaneous duct, last aperture on the left side much larger than other apertures. Gill apertures 5. Slime pores: prebranchial 24; branchial 2; trunk 38-40; tail 9; total 73-75. Cylindrical body, laterally compressed toward spatulate tail. Caudal and ventral finfold well developed. Head, body, tail and finfold pink when fresh, dark violet in alcohol; eyespots faint, branchial region much lighter colored than other parts of the body; gill aperture margins pale (Ref. 41105).
腹面大動脈在鰓囊進入左邊與右邊的分支之內分叉了一 (最前面的小袋) 或二對分叉在第五的或第六個鰓囊在同類與 P. springeri. 五個鰓孔排列成一條直線了; 鰓的輸送管的長度不相等的具有第一個輸送管大約長度兩倍於最後的輸送管。 最後的鰓輸送管與咽頭管匯合, 在左邊上持續孔比其他的孔大很多。 鰓孔 5. 黏液孔: 前鰓 24; 鰓的 2; 軀幹 38-40; 尾部 9; 總計 73-75 。 圓筒形的身體, 側扁的對於竹片狀的尾部。 尾部與腹的鰭褶發展良好的。 頭部，身體，尾部與鰭褶粉紅色新鮮時, 深紫羅蘭色當保存在酒精中時; 眼斑模糊又鰓的區域顏色淡很多超過身體的其他部分; 鰓孔邊緣灰白的.(參考文獻 41105)
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 ).西大西洋: 已知只來自在波多黎各，哥倫比亞，加勒比海附近的 Guajira 海岸了。
Mok, H.-K., L.M. Saavedra-Diaz and A.P. Acero, 2001. Two new species of Eptatretus and Quadratus (Myxinidae, Myxiniformes) from the Caribbean Coast of Colombia. Copeia 2001(4):1026-1033. (Ref. 41105)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 沒有興趣
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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).
營養階層 (Ref.
69278): 3.9 ±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): Low vulnerability (12 of 100).
