West Virginia Polygyrid Snails 



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Figs. 1-6. County distributions of Triodopsis in West Virginia. Horizontal 

 scale bar in all figures = 100 km. 1, T. denotata; 2, T. tridentata; 3, T. albolabris; 

 4, T. fraudulenta fraudulenta; 5, T.f. vulgata; 6, T. rugosa. 



