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(Science: zoology)

1. A small shark, of many species, of the genera Mustelus, Scyllium, Spinax, etc.

The European spotted dogfishes (Scyllium catudus, and s. Canicula) are very abundant; the American smooth, or blue dogfish is Mustelus canis; the common picked, or horned dogfish (Squalus acanthias) abundant on both sides of the atlantic.

2. The bowfin (amia calva). See bowfin.

3. The burbot of lake Erie.