Dogfish \Dog"fish`\, n. (Zool.) 1. A small shark, of many species, of the genera {Mustelus}, {Scyllium}, {Spinax}, etc. [1913 Webster] Note: The European spotted dogfishes ({Scyllium catudus}, and {Scyllium 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. [1913 Webster] 2. The bowfin ({Amia calva}). See {Bowfin}. [1913 Webster] 3. The burbot of Lake Erie. [1913 Webster]