balistes

Century Dictionary and Cyclopedia

1. n. A genus of plectognath fishes, typical of the family Balistidæ, containing such species as B. capriscus. They are known as trigger-fish, because one large and sharp first ray of the dorsal fin cannot be pressed down until the second ray is depressed, when the first shuts down as does the hammer of a gun when the trigger is pulled.

WordNet 3.0

1. n. type genus of the Balistidae