conchs on rock

algae animal aquatic asia asian barnacles beach beaches biology brittany calcium cave caves circle circles cliff cliffs close closeup coastal conch conchs countryside crustacea dense detail eco ecology fossil fossils fresh granite habitat habitats hard island japan limestone limpet lines macro marco micro microhabitat mollusc natural nature near ocean oceans okinawa overgrown pattern patterns pearl pearls pebble rock rocks rocky rough saltwater sand seashell sessilia shell shells slimy small snail snails spiral stone summer texture water