Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

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Eptatretus grouseri McMillan, 1999

Pez bruja de Grouser, Grouser’s hagfish

Five or six gill pouches and apertures each side, last gill aperture confluent with the pharyngocutaneous duct on the left side. Multicusps 3 in anterior and 2 in posterior rows, 9 unicusps in each anterior and 8 in each posterior row, total cusps 44; slime pore counts: prebranchial 12-13, branchial 4-5, trunk 44-46, tail 14-15, total slime pores 76-77. Ventral finfold vestigial; caudal finfold well developed (Ref. 31788).

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Chordata

Class
Myxini

Order
Myxiniformes

Family
Myxinidae

Genus
Eptatretus

Species
grouseri

Taxon category: Accepted

Holotype, CAS 86428.

Origin: Endemic

Status

Least concern

Distribution

Distribution: Galapagos Islands: Fernandina Island and North-Eastern Seymour Island.

References

  • Appeltans, W. Bouchet, P., Boxshall, G.A., Fauchald, K., Gordon, D.P., Hoeksema, B.W., Poore, G.C.B., van Soest, R.W.M., Stöhr, S., Walter, T.C., Costello, M.J. (eds.) (2010) World Register of Marine Species (WoRMS). Available online at http://www.marinespecies.org.
  • Froese, R. Pauly, D. (eds.) (2010) FishBase. World Wide Web electronic publication. www.fishbase.org
  • McCosker, J.E. Rosenblatt, R.H. (2010) The fishes of the Galápagos Archipelago: an update. Proc. Calif. Acad. Sc., Ser. 4, vol. 61, Suppl. II, no. 11: 167-195.
  • Grove, J.S. Long, D.J., Robertson, D.R. & Victor, B.C. (2022) List of Fishes of the Galapagos Archipelago, Ecuador. Journal of the Ocean Science Foundation, 39, 14–22.
  • IUCN (2023) The IUCN Red List of Threatened Species. Version 2023-1. Https://www.iucnredlist.org
  • McMillan, C. B. (1999) Three new species of hagfish (Myxinidae, Eptatretus) from the Galápagos Islands. Fishery Bulletin, 97(1), 110-117.
  • IUCN (2024) The IUCN Red List of Threatened Species. Version 2024-1. Https://www.iucnredlist.org

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This page should be cited as follows:

"Galapagos Species Database, Eptatretus grouseri", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=12744. Accessed 28 May 2025.