ARTHROPOD OR MOLLUSC? 5Versión en línea Is this an arthropod or a mollusc? por Rafael Rodríguez Pérez 1 It has got a soft body. Hints 1 These animals can have got shells. 2 Arthropod or mollusc? 3 This animal has got a shell. 4 It's invertebrate. 5 It can't swim, walk or fly. 6 Come on, it's a piece of cake! Is it an arthropod or a mollusc? 7 It lives in the sea.