The Collaborative International Dictionary of English v.0.48:

Haminoea \Haminoea\ n.
   A common genus of marine bubble shells of the Pacific coast
   of North America.

   Syn: genus Haminoea.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Haminoea
    n 1: common genus of marine bubble shells of the Pacific coast
         of North America [syn: Haminoea, genus Haminoea]