Definition of spur-dog in English:

spur-dog

noun

  • A large white-spotted grey dogfish with venomous spines in front of the dorsal fins. It occurs in the North Atlantic and the Mediterranean, often in large shoals.

    Squalus acanthias, family Squalidae

    ‘We had several congers to about twelve pounds (some of which, people who know me will be surprised to know, I actually held!) and some spur-dogs.’