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T Travis: Lithasia verrucosa
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T Travis: Lithasia verrucos with zebra mussels
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T Travis: Elimia ebena body color
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T Travis: Elimia ebena
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T Travis: Pleurocera acuta Silver Crk, IN
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T Travis: Lithasia obovata (Shawnee rocksnail) juv
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T Travis: Lithasia obovata adult (Shawnee rocksnail), Ohio River
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T Travis: Elimia livescens c.f. (a freshwater snail) Blue River, Indiana