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PROCEEDINGS OF THE ACADEMY OP 
. Patula alternata, Say. 
. Patula Hemphilli, Newc. 
. Patula alternata, Say. Var. mordax, Shuttl. 
. Patula Cumberlandiana, Lea. 
. Patula solitaria, Say. 
. Patula striatella, Anthony. 
Pirate VIII. 
a. Central and lateral teeth. 
6. The last lateral tooth. 
¢. Inner marginal teeth. 
d. Outer marginal teeth. 
. Helix Texasiana, Mor. 
. Helix Troostiana, Lea. 
. Helix uvulifera, Shuttl. 
. Helix espiloca, Rav. 
Helix Hazardi, Bl. 
. Helix septemvolva, Say. 
. Helix Febigeri, Bl. 
. Helix pustula, Fér. 
. Helix auriformis, Bl. 
. Helix Mooreana, W. G. B. 
. Helix fastigans, L. W. Say. 
. Helix auriculata, Say. 
Puate [X. 
Helix Hdvardsi, Bland. 
a. Central and first lateral. 
5b. Marginal. 
e. Hxtreme marginal. 
. Helix polygyrella, Bland. Same references. 
. Helix Yatesi, J.G. Coop. Same references. 
- Helix monodon, Rack. Same references. 
- Helix germana, Gld. Same references. 
. Helix hirsuta, Say. 
6. Transition from laterals to marginals. 
. Helix stenotrema, Fér. 
a. Central and lateral teeth. 
6. Extreme marginals. 
. Helix spinosa, Lea. 
. Helix barbigera, Redf. References as in fig. 6. 
