24 



Calciferous of the Mohawk Valley 



136 



Explanation of Plate 15 



Fig. I. Ecculiomphalus mulHseptarius, n. s. View of 



the upper side 



2. Natural sedlion showing partitions. 



3 , 4. Two views of young (?) forms. 



5. Ophileta discus, n. s. Lateral view 



6. Upper view. 



7. Raphistoma obiusa, n. s. View of under side.. 



8. View of upper side. 



9. Lateral view. 



10. Straparollus parva, n. s. Side view 



1 1 . View of upper side. 



12. Pleiirotomaria floridensis , n. s. Side view 



13. Miirchisonia mohawkensis, n. s. Side view 



14. Holopea turgida Hall. Side view 



15. 16, 17, 18. Bellerophon calcifer, n. s. Lateral 



and upper views, showing variations in this 



species 



19, 20, 21. Bellerophon stibovatus, n. s. Dorsal, 

 lateral, and ventral views...' 



Page. 



11, 123 



12, 124 

 13- 125 



15. 127 



13, 125 



14, 126 



13, 125 



14, 126 



15, 127 



