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Southwest Florida Shells with Emphasis on Sanibel & Captiva
José H. Leal
Family Onchidiidae
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Onchidella floridana
(Dall, 1885)
Florida Onchidella
![](http://res.cloudinary.com/bailey-matthews-shell-museum/image/upload/v1429301747/fsmd2jifacwp4hxb2dg8.jpg)
Size to 15 mm; this sea slug is covered with small tubercles scattered on a velvet-like surface. The tentacles are very prominent. Color slate-gray or grayish-green. Onchidellas browse on algae at low tide, living in crevices in oysters reefs and other back-bay habitats. This photo was taken by Jake Mitchell on an oyster reef in Marco River.
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