xiv List of Plates. 



Plate XV. 



Fig. A. Helix fringiMa, Pfr. * Dentition. 



B. " Garpenieri, Newc. " 



C. " pubescens, Pfr. Jaw. 



D. The same. Dentition. 



E. Valuta Cumberlandiana, Lea. " 



F. Oylindrelia Poeyana, Orb. 



G. Helix Diabloensis, Cooper. 

 *See Plate XIV. tig. A. 



Plate XVI. 



Fig. A. Bulimidus limnceoides, Fer. Jaw. 



B. The same. Dentition. 



C. Helix cereolus, Muhlf. 



D. " exokta, Binnev. 



E. The same, — seepage 178. 



F. " rufescens, Penn. " 

 <;. •• dentiens, Fer. 



II. Trochomorpka Cressida, Gould. 

 1. Nanina radians, Pfr. 



Plate XVII. 



Fig. I. CjflindreUa ornata, Gundl. Dentition. 



II. Binneya notabUis, Cooper. .law. 



III. Tlii' same. Dentition. 



IV. The same. Animal. 

 V. Helix Tryoni, Newc. Dentition 



VI. Succinea papUlata, Pfr. 



VII. " pallida, Pfr. 



VIII. Helix Van Nostrandi, Bland. " 



IX. " facta, Newc. Genitalia. 



X. " TYyoni, Newc. " 



XI. •• faUax, Say. 



XII. " \'<in Nostrandi, Bland. " 



XIII. " facta, Newc. Dentition. 



XIV. " Hopetonensis, Shuttl. Genitalia. 

 XV. " altemata, Say (var.) " 



XVI. Endodonta incerta, Mouss. Dentition. 



XVII. Patula Huahinensis, Pfr. " 

 XVIII. Helix Rugeli, Shuttl. Genitalia. 



XIX. '• Iridentata, Say. " 



