Eptatretus wandoensis, 5-gilled white mid-dorsal line hagfish

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Eptatretus wandoensis Song & Kim, 2020

5-gilled white mid-dorsal line hagfish
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

メクラウナギ (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: Greek, epta = seven + Greek, tretos, -e, -on = with holes (Ref. 45335);  wandoensis: The specific name, wandoensis, refers to the type locality, in Korea.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 海 底生の; 深さの範囲 60 - 80 m (Ref. 122037).   Temperate; 35°N - 33°S, 126°E - 128°E (Ref. 122037)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Northwest Pacific: Sea of Korea / Sea of Japan / East Sea.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 29.2 cm TL (female)

簡単な記述 形態学 | 形態計測学

This species is distinguished by the following characters: 5 pairs of gill apertures; conspicuous eyespots; fused cusps 3/2, with total cusps, 40-43; gill pouch (GP) one at end of dental muscle; total slime pores 74-82 (prebranchial 14-18; branchial 4; trunk 46-49; tail 9-11); branchial length 5.2%-6.2% of TL; pharyngocutaneous duct confluent with the last gill aperture; ventral artery splitting at ca. 3-4 GP. Colour when fresh: body uniformly dark brown or purplish dorsally and white ventrally; white mid-dorsal line distinct, beginning from upper region of the first prebranchial slime pore to around the tail (Ref. 122037).

生物学     用語集 (例 epibenthic)

A female specimen (29.0 cm TL) was found with approximately 20 developing eggs, without terminal anchor filaments or hooks, and each egg measures approximately 4-7 mm in diameter and 10-12 mm in length (Ref. 122037).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

A female specimen of 29.0 cm TL carries approximately 20 developing eggs, which have no terminal anchor filaments or hooks; each egg approximately 4-7 mm in diameter and 10-12 mm in length. Another one of 29.2 com TL had none.

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Song, Y.S. and J.-K. Kim, 2020. A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea. ZooKeys 926: 81-94. (Ref. 122037)

IUCNのレッドリストの状況は (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
栄養段階 (Ref. 69278):  4.1   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  .
弱み (Ref. 59153):  Low vulnerability (19 of 100) .