A snail about the size of a coin generally lives under the sand but comes out at night to feed, Anilao, Philippines.

anilao animal animal themes animals in the wild aquatic buried close up color image gastropod habitat horizontal littorinidae littorinoidea macro marine biology mollusk muck diving no people ocean ocean floor one animal outdoors philippines photography protection sand sea life sea snails seabed shell small snail southeast asia spiral sundial undersea underwater wildlife zoology