490 NON-MARINE FOSSIL MOLLUSC!. 



PLATE 2. CARBONIFEROUS. 

 PUPA VETUSTA Dawson. (Page 456.) 



Fio. 1. Lateral view, enlarged. 



Fio. 2. Apertural view, enlarged. After Dawson. 



DAWSONELLA MEEKI Bradley. (Page 453.) 



FIG. 3. Apertural view, enlarged. 



FIG. 4. Outline of under view, enlarged. After Whitfield. 



ANTHRACOPUPA OHIOENSIS Whitfield. (Page 456.) 



FIG. 5. Lateral view, enlarged. 



FIG. 6. Lateral view, outline showing edge of outer lip. 



FIG. 7. Lateral view, outline showing aperture. 



FIG. 8. Outline view of aperture, more enlarged. After Whitfield. 



PUPA BIGSBYI D. (Page 456.) 



FIG. 9. Lateral view, enlarged. 



FIG. 10. Lateral view of a smaller example, enlarged. After Dawson. 



ZONITES PRISCUS D. (Page 453.) 



FIG. 11. Lateral view, enlarged. 



FIG. 12. View showing the aperture, enlarged. After Dawson. 



PUPA VERMILLIONENSIS B. (Page 456.) 



FIG. 13. Lateral view, enlarged. 



FIG. 14. Lateral view, showing the aperture, enlarged. After Dawson. 



NAIADITES CARBONARIA D. (Page 425.) 

 FIG. 15. Left side view, natural size. After Dawson. 



NAIADITES ELONGATA D. (Page 425.) 

 FIG. 16. Right side view, natural size, and enlarged. After Dawson. 



NAIADITES L.EVIS D. (Page 425.) 

 FIG. 17. Left valve enlarged, and smaller examples of natural size. After Daweon. 



