Common name : slippers and shelf limpets
Aspect : hooded, conical or discoid shell. The genus crucibulum presents a sort of funnel under the apex. The genus crepidula has a blade inside the shell which half closes the opening and protects the body of the animal.
Feeding : plankton
Environment : estuary and intertidal zone
Crepidula fornicata (Linnaeus, 1758)