Cockles (Cerastoderma edule) – a type of edible shellfish also called a ‘bivalve mollusc’ and can be found in sandy beaches around the world.
Cocos (Cerastoderma edule) – math o bysgod cregyn bwytadwy a elwir hefyd yn folysgiaid dwygragennog ac y gellir dod o hyd iddynt mewn traethau tywodlyd ledled y byd.