bubble shell

English Thesaurus

1. marine gastropod mollusk having a very small thin shell (noun.animal)

hypernym	:	gastropod, univalve,
definition	:	a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes (noun.animal)

member meronym	:	genus haminoea, haminoea,
definition	:	common genus of marine bubble shells of the Pacific coast of North America (noun.animal)