144 NON-MARINE FOSSIL MOLLUS CA. 



Plamorbis lunata Conrad. (Page 42.) 



Figs. 24 and 25. Copies of Conrad's original figures. 



Limslea meekii Evans & Slmuiard. (Page 40.) 



Fig. 2ii. Lateral view of a large example, natural size. 

 FlG. 27. Opposite view of a smaller example. After Meek. 



LimNjEA shumardi Meek & Hayden. (Page 40. ) 



Fig. 28. Lateral view, natural size. 



Fig. 29. Opposite view of the same. After Meek. 



LIMN-2BA (Polyrhytis) kingii Meek. (Page 40.) 



Figs. 30 and 31. Copies of Meek's original figures, natural size. 



Helix leidyi Hall & Meek. (Page 49.) 



Fig. 32. Lateral view, natural size. 



Fig. 33. Apical view of tlie same example. After Meek. 



Helix (Zonites) marginicola C. (Page 47.) 



Fig. 34. Copy of Conrad's original figure. 



.Physa secalina E. & S. (Page 44.) 



Fig. 35. Lateral view, natural size. 



Fig. 36. Opposite view of the same. After Meek. 



Latia dallii White. (Page 45.) 



Fig. 37. Dorsal view, natural size. 

 Fig. 38. Lateral view of the same example. 

 Fig. 39. Dorsal view of another example. 



Fig. 40. Similar view of another example, showing a portion of the shell broken 

 away, revealing the large lunate shelf extending forward from the beak. 



