Crepidula depressa Say, 1822 is a local member of the family Calyptraeidae. It is one of the “flat white slipper snails” whose identification is difficult without a glimpse at the soft parts. The species may attain 40 mm (1.6 inch) at most, but is most often found in the 25 mm (about an inch) size range. Unlike the Black-foot Slipper Snail, (Crepidula atrasolea, the “other” local flat, white slipper snail), the Depressed Slipper Snail has a yellowish-cream color on the foot and mantle. Their white shells, however, are virtually indistinguishable.
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