Galapagos Species Database

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

Eptatretus mccoskeri McMillan, 1999

Pez bruja McCosker’s, McCosker’s hagfish

Deep-water (215 m) Bathydemersal

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Chordata

Class
Myxini

Order
Myxiniformes

Family
Myxinidae

Genus
Eptatretus

Species
mccoskeri

Taxon category: Accepted

Holotype CAS 86431.

Origin: Endemic

Status

Least concern

Distribution

Map of specimen collection localities or observation records for this species in our collections database.

Distribution: Galapagos Islands: San Cristobal, Santa Cruz and Santa Fe.

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
  • 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.
  • Horton, T. Horton, T., Kroh, A., Ahyong, S., Bailly, N., Boyko, C. B., Brandão, S. N., Gofas, S., Hooper, J. N. A., Hernandez, F., Holovachov, O., Mees, J., Molodtsova, T. N., Paulay, G., Decock, W., Dekeyzer, S., Poffyn, G., Vandepitte, L., Vanhoorne, B., Adlard, R., ... Zhao, Z. (2021) World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ.
  • IUCN (2024) The IUCN Red List of Threatened Species. Version 2024-1. Https://www.iucnredlist.org
  • IUCN (2023) The IUCN Red List of Threatened Species. Version 2023-1. Https://www.iucnredlist.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.
  • McMillan, C. B. (1999) Three new species of hagfish (Myxinidae, Eptatretus) from the Galápagos Islands. Fishery Bulletin, 97(1), 110-117.

You are welcome to download and use the information found in this page, acknowledging its source.

This page should be cited as follows:

"Galapagos Species Database, Eptatretus mccoskeri", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=12746. Accessed 1 November 2026.