Myxine circifrons

Myxine circifrons, the whiteface hagfish, is a marine bathydemersal species of fish in the family Myxinidae. It is found off Southern California, Peru, and Chile and grows to 65 centimetres (26 in) total length.[2]

Myxine circifrons
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Infraphylum: Agnatha
Class: Myxini
Order: Myxiniformes
Family: Myxinidae
Genus: Myxine
Species:
M. circifrons
Binomial name
Myxine circifrons
Garman, 1899

Distribution and habitat

It is found off Southern California, Peru, and Chile in marine bathydemersal habitats approximately 700 metres (2,300 ft) to 1,860 metres (6,100 ft) deep.[2]

Anatomy and appearance

It grows to 65 centimetres (26 in) total length and is similar in appearance to other hagfish.[2] Gonads are situated in the peritoneal cavity.[2]

Reproduction

The whiteface hagfish becomes male when the posterior part of the gonads develop and female if the anterior part develops.[2] If both develop, the fish becomes hemaphroditic, and if none develops, the fish becomes sterile.[2]

References

  1. Mincarone, M.M. (2011). "Myxine circifrons". IUCN Red List of Threatened Species. 2011: e.T196052A8998570. doi:10.2305/IUCN.UK.2011-1.RLTS.T196052A8998570.en. Retrieved 4 March 2023.
  2. Fernholm, Bo (1998). "Hagfish systematics". In Jørgensen, Jørgen Mørup; Lomholt, Jens Peter; Weber, Roy E.; Malte, Hans (eds.). The Biology of Hagfishes. Chapman & Hall, London. pp. 33–44. doi:10.1007/978-94-011-5834-3_3.


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