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) > Myxininae
Etymology: Myxine: Ancient Greek word for a slimy fish: myxa, slime; -inus, one who, referring to copious amounts of slime produced by M. glutinosa. (See ETYFish); paucidens: paucus (L.) few; dens (L.) tooth, referring to 13 total teeth compared to 15-24 teeth in similar species. (See ETYFish).
More on author: Regan.
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 630 - 1000 m (Ref. 51420). 深水域
Northwest Pacific: known only from the Sagaminada Sea, Japan.
西北太平洋: 已知只來自日本相模海了。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 30.5 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
Diagnosis: Six pairs of gill pouches; the last gill aperture not confluent with to pharyngocutaneous duct; ventral finfold well developed; fused cusps 2/2, anterior (outer) unicusps 4-4, posterior (inner) unicusps 5-5, total cusps 26; total slime pores 92=93 (Ref. 51420).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 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: 已知只來自日本相模海了。
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)
濒危 (EN) (B1ab(ii)); Date assessed: 11 November 2009
人类利用
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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=0.00115 (0.00045 - 0.00296), b=3.03 (2.80 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.6 se; based on size and trophs of closest relatives
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): Low vulnerability (21 of 100).
