Proc. Ac.Nat.So.Phila.1875. Plate XIIL 
W.G.B. del. | T. Sinclair &Gon, lith. Pina. 
1. Hemitrochus varians, M4. 5. Helix lineata, Say. 
2.Helix sriseola, 7%, ° 6.Helix Newberryana, WC Lenn. 
3, Helix Stearnsiana, Gad. 7. Helix aspersa, Wu//. 
4. Helix Kelletti, 7070. 8. Helix fidelis, Gray. 
9 Helix infumata, GZ. 
