bucciniform
/ˌbʌksɪˈnɔːrfɔrm/Definitions
1. adjective
Having a shell of the shape of a buccinator, or a muscular part of the mouth.
“The bucciniform shape of the shell helped it to blend in with its surroundings.”
2. noun
A type of snail shell having a bucciniform shape.
“The bucciniform shell of the snail was a unique feature in the world of mollusks.”