90 NON-MARINE FOSSIL MOLLUSCA. 



PLATE 5. CRETACEOUS. 



Unio penultimus Gabb. (Page 21.) 



Fig. 1. Copy of Mr. Gabb's original figure, natural-size. 



Unio hubbardi G. (Page 21.) 



Fig. 2. Left side view, natural size. 



Fig. 3. Outline of front view. After Gabb. 



Cyrena carletoni Meek. (Page 30.) 



Fig. 4. Left view, natural size. 

 Fig. 5. Dorsal view of the same. 



Anomia propatoris White. (Page 16.) 



Fig. 6. Exterior view of an upper valve, natural size. 

 Fig. 7. Lateral view of the same. 



Neritina (Velatella) bellatula M. (Page 52.) 



Fig. 8. Dorsal view of a small example, enlarged. 

 Fig. 9. Lateral view of another example, enlarged. 



Neritina (Velatella) carditoides M. (Page 52.) 



Fig. 10. Dorsal view of the type specimen, natural size. 



Neritina bannisteri M. (Page 52.) 



Fig. 11. Lateral view, enlarged, showing the color markings. The specimen has been 

 a little compressed. 



Fig. 12. Two views of a small example, enlarged. The color markings are not pre- 

 served in this example. 



Melampus? antiquus M. (Page 38.) 



Fig. 13. Lateral view of a small example, enlarged. 



Fig. 14. Opposite view of the same. 



Fig. 15. Fragment of a very large example, natural size. 



Fig. 16. Apex very much enlarged, showing the reversed initial whorl. 



Melampus ? ? (Page 38.) 



Fig. 17. Lateral view, natural size. 



Phtsa carletoni M. (Page 43.) 



Fig. 18. Lateral view, natural size. 



Valvata nana M. (Page 64.) 



Fig. 19. Lateral view, enlarged. 

 Fig. 20. Summit view of the same. 



