Article Nº 0097 Fish Vol. I · p. 58
Albafar (Notidanus griseus)
The albafar (Notidanus griseus, the bluntnose sixgill shark) is a voracious deep-sea shark whose liver alone is used in Madeira to extract fish oil, while its flesh is rejected as among the worst of all sharks.
A deep-sea shark of the family Notidanidae, very voracious, of which only the liver is used, to extract so-called fish oil. Some individuals yield as much as 10 gallons of oil. The flesh is rejected as among the worst the shark group can offer.