Topic summary
Patellidae
Patellidae is a taxonomicfamily of true limpets, marinegastropodmolluscs in the superfamilyPatelloidea. (The superfamily Patelloidea should not be confused with the similar-sounding genus of true limpets Patelloida which is in the family Lottiidae within the superfamily Lottioidea, also part of the Patellogastropoda.)
The largest known limpet in the world is Scutellastra mexicana that can reach 35.5 cm (14.0 in) in length.