132 NON-MARINE FOSSIL MOLLUSCA. 



PLATE 26. LARAMIE. 

 Melaxia wyomixgex'SIS Meek. (Page 54.) 

 Fig. 1. Lateral view, showing the outline of the outer lip. 

 Fig. 2. Similar view of another example. 



Fig. 3. Similar view of the distal volutions, showing those of the apical portion to 

 be destitute of spines. 



Melania ixsculpta M. (Pago 54.) 

 Fig. 4. Fragment of an adult example."" 

 Fig. 5. Fragment of a smaller example". 



(Both natural size, and both from Northeastern Colorado.) 

 Goxiobasis coxvexa Meek & Haydeu. (Page 57.) 

 Fig. 6. .Lateral view, natural size. 

 Fig. 7. Opposite view of the same example. 



Goxiobasis coxvexa var. impeessa M. & H. (Page 57.) 

 Fig. d. Lateral view, natural size. 

 Fig. 9. Opposite view of the same example. 



Goxiobasis ? omitta M. & H. (Page 57.) 

 Fig. 10. Apertural and opposite views; natural size. After Meek.- 

 Goxiobasis tf.xuicakixata M. & H. (Page 57.) 

 Fig. 11. Apertural and opposite views ; natural size. 



Goxiobasis gkacilenta M. (Page 57.) 

 Fig. 12. Apertual and opposite views of Mr. Meek's type speoimen. 

 Fig. 13. Lateral view of au example from Crow Creek, Colorado. 

 (Both natural size.) 



Limx^a ? compactilis M. (Page 39.) 

 Fig. 14. Apertural and opposite views of Mr. Meek's type specimen, natural size. 

 Goxiobasis xebeascexsis M. & H. (Page 57 N 



Fig. 15. Lateral view, natural size. 



FlG. 16. Opposite view of the same example. 



Goxiobasis ixvexusta M. & H. (Page 57.) 

 Flo. 17. Lateral view of the type specimen of Meek & Haydeu, natural size. 



Goxiobasis subl/evis M."& H.. (Page 57.) 

 Fig. 18. Lateral view of the type specimen of Meek & Hayden, natural size. 



Cerithidea ? xebeascexsis M. & H. (Page 57. ) 

 Fig. 19. Apertural and opposite views of the type specimen of Meek & Hayden, en- 

 larged. After Meek. 



Miceopyrgds mixutulus M. & H. (Page 59.) 

 Fig. 20. Apertural and opposite views of the type specimen of Meek & Hayden, 

 enlarged. 



Campeloma peoducta White. (Page 63.) 

 Fig. 21. Lateral view of au elongate example, regarded as the type. 

 Fig. 22. Opposite view of the same. 

 Fig. 23. Lateral view of a more robust example. 

 Fig. 24. Opposite view of the same. 

 I 1 1.. 25. Lateral view of a subcariuate variety. 

 FIG. 23. Similar view of another example of the same variety. 

 Fig. 27. Similar view of another example of the same variety. 

 (All natural size.) 



