Fossaria

noun
Fos·​sar·​ia | \ fäs-ˈar-ē-ə, -ˈer-, fȯs- How to pronounce Fossaria (audio) \

Medical Definition of Fossaria

: a widely distributed genus of small freshwater pulmonate snails of the family Lymnaeidae including important intermediate hosts of liver flukes — compare galba, lymnaea