Cyrtopleura costata (Linnaeus, 1758) Angelwing

    Washed onto the beach, Kice Island, just south of Marco Island, Collier County, Florida 12/30/2012 | Digital image by Amy Tripp

    Buried in mud, Cedar Key, Levy Co.,  Florida  (about 170 mm.). Specimen has mineral staining which is common at this location.