| 膝皿貝;火皿貝;石鼈;爺が背 | [ひざらがい(膝皿貝;火皿貝;石鼈);じいがせ(石鼈;爺が背);ヒザラガイ, hizaragai ( hiza sara kai ; hi sara kai ; ishi betsu ); jiigase ( ishi betsu ; jii ] (n) (1) (uk) chiton (any marine mollusk of the class Polyplacophora); sea cradle; (2) Japanese chiton (Acanthopleura japonica) [Add to Longdo] |
| polyplacophora | (n) small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura, Syn. class Polyplacophora |