What is "trunkfish"

Cowfish \Cow"fish`\ (kou"f[i^]sh`), n. (Zo["o]l.)

1. The grampus.

2. A California dolphin ( Tursiops Gillii).

3. A marine plectognath fish ( Ostracoin quadricorne, and allied species), having two projections, like horns, in front; -- called also cuckold, coffer fish, trunkfish.

n. boxfish

1. n. any of numerous small tropical fishes having body and head encased in bony plates [syn: boxfish]

2. [also: trunkfishes (pl)]