The Collaborative International Dictionary of English v.0.48:

Buccinoid \Buc"ci*noid\, a. [Buccinum + -oid.] (Zool.)
   Resembling the genus Buccinum, or pertaining to the
   Buccinid[ae], a family of marine univalve shells. See
   Whelk, and Prosobranchiata.
   [1913 Webster]