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Myxini (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); moki: In honor of Hin-kiu Mok (b. 1947), National Sun Yat-Sen University, Taiwan, for his many “outstanding” contributions to hagfish knowledge (See ETYFish).
Eponymy: Dr Michael Hin-Kiu Mok (d: 1947) is a Taiwanese marine biologist and ichthyologist who is a Research Associate, Vertebrate Zoology, Ichthyology, AMNH and after his retirement has become an Adjunct Professor, Department of Oceanography, National [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; non-migratory; depth range ? - 100 m (Ref. 51420). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: Japan.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 47.0 cm TL male/unsexed; (Ref. 51420)

Short description Identification keys | Morphology | Morphometrics

Six pairs of gill pouches (GP) and apertures (GA); GA closely spaced (not crowded) in a nearly straight line. Fused cusps 3/2, total cusps 38-43. Prebranchial slime pores 18-21; total pores 75-82. Ventral finfold well developed with wide pale margin. Eyespots faint or absent (Ref. 51420).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

McMillan, C.B. and R.L. Wisner, 2004. Review of the hagfishes (Myxinidae, Myxiniformes) of the northwestern Pacific Ocean, with descriptions of three new species, Eptatretus fernholmi, Paramyxine moki, and P. walkeri. Zool. Stud. 43(1):51-73. (Ref. 51420)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 13 November 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of potential interest

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More information

Trophic ecology
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Length-weight rel.
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00204 (0.00094 - 0.00444), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.7 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (37 of 100).

Eptatretus moki (McMillan & Wisner, 2004)