Eptatretus astrolabium

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Eptatretus astrolabium Fernholm & Mincarone, 2010

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No image available for this species;
drawing shows typical species in Myxinidae.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Myxini 盲鳗纲 (丑鱼) (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: Greek, epta = seven + Greek, tretos, -e, -on = with holes (Ref. 45335);  astrolabium: Named after its type locality, Astrolabe Bay, which was named in 1827 by Jules Sébastien César Dumont d’Urville after his vessel L’Astrolabe; noun in apposition.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 海洋 底中水层性; 深度上下限 ? - 500 m (Ref. 85154).   

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Western Pacific: Papua New Guinea.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL (female)

简单描述 型态特徵 | 形态测量图

This species differs from all its congeners except five Pacific species (Eptatretus carlhubbsi, Eptatretus cirrhatus, Eptatretus goliath, Eptatretus laurahubbsae, Eptatretus strahani) and two Atlantic Ocean species (Eptatretus caribbeaus, Eptatretus menezesi) by having 7 pairs of gill pouches and three-cusp multicusps on the anterior and posterior rows of cusps. It further differs from these congeners by having the following characters: 10 posterior unicusps (vs. 11-13 in E. carlhubbsi, 7-9 in E. cirrhatus, 11-16 in E. laurahubbsae); 52 total cusps (vs. 54-58 in E. caribbeaus, 61-71 in E. carlhubbsi, 61-68 in E. laurahubbsae); 18-19 prebranchial pores (vs. 13-15 in E. caribbeaus, 12-17 in E. carlhubbsi, 14-15 in E. goliath, 14-17 in E. laurahubbsae, 13-17 in E. menezesi, 13-16 in E. strahani); 5 branchial pores (vs. 6-7 or 6-8 for remaining seven-gilled species); 48-49 trunk pores (vs. 60-70 in E. carlhubbsi, 57-58 in E. goliath, 60-67 in E. laurahubbsae); 83-84 total pores (vs. 93-110 in E. carlhubbsi, 92 in E. goliath, 97-105 in E. laurahubbsae, 86-94 in E. menezesi). In addition, these congeners, except E. caribbeaus, have two bilaterally symmetrical nasal-sinus papillae in the dorsal surface of the nasal sinus, while it is absent in E. astrolabium (Ref. 85154).

生物学特性     字汇 (例如 epibenthic)

The observation re the 'silty mud bottom’ were the specimen was taken, was inferred from sediment in traps retrieved. The female holotype with several small, rounded eggs, ca. 2 mm diameter; all eggs in the mesentery, which is attached to the body wall (Ref. 85154). Iteroparous (Ref. 94918).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Iteroparous (Ref. 94918).

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Fernholm, B. and M.M. Mincarone, 2010. A new species of hagfish (Myxinidae: Eptatretus) from Papua New Guinea. J. Fish Biol. 77(4):998-1005. (Ref. 85154)

世界自然保护联盟红皮书 (Ref. 123251)

  数据缺失 (DD) ; Date assessed: 20 December 2010

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00204 (0.00095 - 0.00438), b=2.93 (2.73 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.2   ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  .
脆弱性 (Ref. 59153):  Low to moderate vulnerability (30 of 100) .