- limpet - mollusk with a low conical shell
--1 is a kind of shellfish
- limpet - any of various usually marine gastropods with low conical shells; found clinging to rocks in littoral areas
--2 is a kind of seasnail
--2 is a member of Gastropoda, class Gastropoda, Gasteropoda, class Gasteropoda
--2 has particulars:common limpet, Patella vulgata; keyhole limpet, Fissurella apertura, Diodora apertura - limpet - any of various usually marine gastropods with low conical shells; found clinging to rocks in littoral areas