196 Jaw and Lingual .Dentition of Puhnonala. 



Plate XV. 

 Fig. Lingual dentition of: • 



A. Helix fringilla, Pfr. See also pi. xiv, fig. A. 



B. Helix Carpenteri, Newc. 



C. D. Helix pubescens, Pfr. 



Jaw and teeth. 



E. Patula Cumberlandiana, Lea. 



F. Cylindrella Poeyana, Orb. 



G. Helix Diabloensis, J. G. Coop. ? 



Plate XVI. 



Fig. Jaw and lingual dentition of: — 



A. B. Bulimulus limnreoidea, Fer. 



0. Helix cereolus, Muhlf. 



D. E. Helix exoleta. Blnney (see -p. 178). 



F. Helix rufescens. Penn. 



G. Helix dentiens, Fer. 



H. Trochomorpha Cressida, Gld. 



I. Nanina radians, Pfr. 



Plate XVII. 

 Fig. 



I. Cylindrella ornata, G. The central, first and last teeth. 



II-IV. Binneya notabilis. Jaw, animal in half repose, anil the central, first, 



sixteenth and last teeth. 



V. Helix Tryoni, Newc. The central, first, eleventh, thirteenth, fourteenth, 



thirty-seventh and last teeth. 



VI. Succinea papillata. Pfr. Central, lateral and marginal. 



VII. Succinea pallida, Pfr. Central and first and fifteenth teeth. 



VIII. Helix Van Nostrandi, Bl. Central, first, tenth, eleventh, nineteenth and 



twenty-fourth teeth. 



IX. Helix facta, Newc. Genitalia. 



X. Helix Tryoni, Newc. Genitalia. 



XI. Helix fallax, Say. Genitalia. 



XII. Helix Van Nostrandi, Bl. Genitalia. 



XIII. Helix facta, Newc. Central, first, fourth, twelfth, thirteenth, seventeenth 



and twenty-sixth teeth. 



XIV. Helix Hopetonensis, Shuttl. Genitalia. 

 XV. Helix alter nata, Say, var. Genitalia. 



XVI. Endodonta incerta, Mouss. Central, first and last teeth. 



XVII. Patula Huahinensis, Pse. Central, lateral and marginal. 



XVIII. Helix Rugeli, Shuttl. Genitalia. 



XIX. Helix tridentata. Say. Genitalia. 



Plate XVIII. 

 Fig. Lingual dentition of:— 



A. Helix Harfordiana, J. G. Coop. 



B. Helix leporina, Gld. 



The right hand figure shows an abnormal first l.itera . 



C. Helix Ingersolli, Bland. 



D. Limax montanus, Ing. 



E. Helix auriculata. Say. 



F. Var. castaneus of D. 



G. Ariolimax Andersoni, J. G. C. ? 

 H. Ariolimax Hemphilli. 



I. Anadcnus. 



