Truncatella clathrus
Truncatella clathrus is a species of very small somewhat amphibious land snail with a gill and an operculum, a semi-terrestrial gastropod mollusk or micromollusk in the family Truncatellidae, the truncatella snails or looping snails. These tiny snails live in damp habitat that is very close to the edge of the sea; they can tolerate being washed with saltwater during especially high tides. These snails are sometimes listed as land snails and at other times they are listed as marine snails.