TY - GEN AU - Levings,Sally C. AU - Garrity,Stephen D. TI - Diel and tidal movement of two co-occurring neritid snails; differences in grazing patterns on a tropical rocky shore KW - Caracoles KW - Habitos alimentarios KW - Etología KW - Ecosistemas costeros KW - Panamá KW - Nerita KW - Nerita scabricosta KW - Nerita funiculata ER -