Vitta usnea (Röding, 1798) Olive Nerite

Vitta usnea (Röding, 1798) Olive Nerite

Vitta usnea (Röding, 1798) Olive Nerite Opercula

Ortega River, Ortega Forest Drive, Jacksonville, Duval Co., Florida, July, 2012 (shells are about 20 mm.)