Proc Ac Nat. Sc. Phila. 1875. | Plate XI. 
W.G.B. del. Sinclair & Gon, lth Pha. 
| Helix elevata, say. 5. Helix profunda, say. 
a.Hehx Columbiana Zee. 6. Helix. multilineata, say 
3. Helix Mobilana, Zea. 7. Helix clausa, Say. 
4, Nelix devia, Ga. 8. Helix dentifera, Bez. 
