Acochlidiidae

Acochlidiidae are a taxonomic family of shell-less freshwater gastropods (one of them Palliohedyle weberi lives in brackish water), aquatic gastropod mollusks within the clade Acochlidiacea.

species of mollusc

Acochlidium is a genus of freshwater slugs, aquatic gastropod molluscs in the family Acochlidiidae.

species of mollusc