Eastern White Slipper Snail
Length (mm): 30-43
This shell is a very flat shell that can sometimes be concave depending on the surface that the shell grew on. The internal platform typically takes up a little less than half the length of the shell. It is usually a white shell.
Nova Scotia to Florida
0 to 110 meters
Marine; Shallow water; often associated with hermit crabs and horse shoe crabs
These shell can typically be found on the inside of dead shells especially those hosted by hermit crabs and on the shells of horseshoe crabs. They feed on the excess food scraps and waste of these crabs.
MolluscaBase eds. (2021). MolluscaBase. Crepidula plana Say, 1822. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=160230 on 2021-06-10
Morris, P. A. (1987). A field guide to shells: Atlantic and Gulf coasts and the West Indies (3rd ed.). Houghton Mifflin.