Tub Gurnard

Found singly, in medium, to very deep waters, over gravel, mud, and sandy bottoms.

Sea robins have heavily armoured, spiny heads. They have separate rays (like soft spines) on their bellies, near the Pectoral fins these spines act like legs, as the fish walks along the bottom of the ocean they use these spines to find crustaceans in the sand.
They also grunt. French term for the word Gurnard means to grunt.
They have poisonous spines on their backs.