The skilfish, Erilepis zonifer, is one of two members of the fish family Anoplopomatidae and the only species in the Erilepis genus. Found on deep rocky bottoms in the North Pacific at depths of up to 440 metres, they can reach up to 1.83 metres in length and weigh up to 91 kilograms. Young fish display striking white blotches on their body, however their colour changes to dark grey with maturity.