Common names from other countries
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); multidens: multus (L.), many; dens (L.), tooth, referring to high tooth count (three fused teeth in each row). (See ETYFish).
More on authors: Fernholm & Hubbs.
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 239 - 770 m (Ref. 31276). 深水域
Western Atlantic: Caribbean Sea and off French Guiana (Ref. 36999), including northeastern Brazil (Ref. 52140).
西大西洋: 加勒比海與外海的法屬圭亞那 (參考文獻 36999), 包括巴西東北部.(參考文獻 52140)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 81.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 52140)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Diagnosis: Gill pouches 6 pairs. Fused cusps 3 in both anterior and posterior rows of teeth; total cusps 50-58. No middorsal light stripe (Ref. 52140). Slime pores: prebranchial 14-16; branchial 5-7; trunk 52-55; tail 15; total 87-93 (Ref. 41105).
鰓孔 6. 黏液孔: 前鰓 14-16; 鰓的 5-7; 軀幹 52-55; 尾部 15; 總計 87-93 。
Minimum depth given from Ref. 52140.
給的最小深度從參考文獻 52140.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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: 加勒比海與外海的法屬圭亞那 (參考文獻 36999), 包括巴西東北部.(參考文獻 52140)
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)
無危 (LC) ; Date assessed: 11 November 2009
CITES (Ref. 128078)
Not Evaluated
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Estimates based on models
Preferred temperature (Ref.
115969): 8.6 - 15.5, mean 11.5 (based on 79 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 (0.00092 - 0.00452), b=2.93 (2.73 - 3.13), 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 (53 of 100).
