Myxine knappi

Common Name

Falklands Hagfish

Year Described

Wisner & McMillan, 1995


Slime Pores
Prebranchial: 30-38
Branchial: 0
Trunk: 54-74
Tail: 7-14
Total: 98-126

Anterior unicusps: 6-8
Posterior unicusps: 7-9
Total cusps: 34-40
Tooth formula: 2/2

Body anguilliform and cylindrical. There are normally six gill pouches. No branchial pores (present in Eptratretus). Ventral finfold variably developed. Caudal finfold well developed.


Body reddish brown to brown with a pale head and ventrum. Pore margins, aperture margin, and ventral finfold margin white. Caudal finfold can have a pale margin.


Maximum size to 56.5cm TL.


Taken over soft bottoms from 1-650m.


Known from off the Falklands Islands and southern Argentina.


Mincarone, M. M. 2007. Revisao Taxonomica da Familia Myxinidae Rafinesque, 1814 (Myxiniformes). Tese de Doutorado, Porto Alegre, RS, Brasil.

Wisner, R. L. & McMillan, C. B. 1995. Review of new world hagfishes of the genus Myxine (Agnatha, Myxinidae) with descriptions of nine new species. Fishery Bulletin 93: 530-550.

Other Notes

Myxine dorsum (Wisner & McMillan, 1995) is a junior synonym of this species.