Proc.Ac.Nat,Sc.PMla.l375 



Plate im 



"kP 



W.G.B.del. 



Xr^mcla- tSra uth thi 



\% 



1. Helix meatleyi,^<i7/z^. 5. Helix Mitchelliaiia./f^. 9. Helix asteriscus,^>5i?r^ 

 2.Helixtli)a:iiide,s„6'5/ e.^Helixpulchella.^//. 10. Helix ol} striata. Z/^. 

 3 . Helix Pennsylvanica, (P^ee^. 7. Helix labyrintMca. Sa}i 11. Helix Hutlb ardlJ.D^r 



