West Virginia Polygyrid Snails 



153 



Figs. 19-23. County distributions of Stenotrema in West Virginia. 19, S. fra- 

 ternum; 20, 5. stenotrema; 21, S. leai; 22, S. edvardsi; 23, S. barbigerum. Fig. 

 24. County distribution of A llogona profunda in West Virginia. 



