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

Eptatretus wandoensis Song & Kim, 2020

5-gilled white mid-dorsal line hagfish
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Image of Eptatretus wandoensis (5-gilled white mid-dorsal line hagfish)
No image available for this species;
drawing shows typical species in Myxinidae.

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Myxini (slijmprikken) (hagfishes) > Myxiniformes (Hagfishes) > Myxinidae (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)wandoensis: -ensis, Latin suffix denoting place: Wando-gun, Jeollanam-do, Republic of Korea, type locality (See ETYFish).

Taxonomic Remarks
Formally known only from the type-series in 2020 but was initially confused with Eptatretus burgeri because it may have been considered a morphological variation of Eptatretus burgeri, due to the presence of five gill apertures (Ref. 122037).

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien demersaal; diepte 60 - 80 m (Ref. 122037). Temperate; 35°N - 33°S, 126°E - 128°E (Ref. 122037)

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

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

Grootte / Gewicht / Leeftijd

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

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

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).
Body shape (shape guide): elongated; Cross section: compressed.

Biologie     Verklarende woordenlijst (bv. 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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.

Hoofdreferentie Upload uw referenties | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van geen belang
FAO - Publication: search | FishSource |

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 0.5000 [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).
Trofisch niveau
(Ref. 69278)
4.0   ±0.7 se; based on size and trophs of closest relatives
Weerstandsvermogen
(Ref. 120179)
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij
(Ref. 59153)
Low to moderate vulnerability (32 of 100). 🛈