299 Crown Point Section • 33 



O. (?) porcia Billings. A 7, 8. C i. 



O. tricenaria Conrad. C 33. 



Pledlorthis plicatella Hall. C 19, 20, 23, 24. 



Dinorthis defleda (?) Conrad. A 8. B 3, 4, 8-11. C 3, 



4, 6, 7, 10, 12, 16. 

 D. pedlinella Emmons. C 24, 27. 

 D. platys Billings. A 5, 6, 7. 

 Hebertella borealis Billings. A 6, 8. 

 Platystrophia biforata Schlotheim. C 40, 42, 43, 45-47. 

 Dalmanella (?) plicifera Hall. B 8, ir, 15. C 10, 12. 

 D. subaequata pervetus Conrad. C 20. 

 D. testudinaria Dalman. B 15. C 24, 28, 32-47. 

 Camarella longirostris Billings. B 9, 10, 13, 15. C 3, 4, 



10, 12. 

 C. varians Billings. A 5, 7. B 5, 10, 12, 13, 15, 17. C r, 



7, 10, 12, 16. 

 Parastrophia hemiplicata Hall. C 31, 33, 34, 39. 

 Rhynchotrema inaequivalve Castelnau. C 20, 23, 24. 

 Rhynchonella (?) acutirostris Hall. C i. 

 Zygospira recurvirostris Hall. B 18, 20, 21, 24, 25. 



MOI/I/USCA. 



1. Pelecypoda. 



Ctenodonta levata Hall. B 3, 9. C 6, 19, 25-27, 30, 32. 

 C. nasuta Hall. B 13. C 19, 20, 3*5, 45. 

 Whitella ventricosa Hall. C 19, 32. 

 Cuneamya subtruncata Hall. C 19, 23. 

 Ambonychia mytiloides Hall. C 10. 



2. Gastropoda. 



Raphistoma lenticulare Emmons. C 25, 30, 39. 

 R. planistria var. parvum Hall. B 3, 10. C 7, 12. 

 R. stamineum Hall. B 3, 4. C 12, 16. 

 R. striatum Emmons. B 4, 9. C 6, 7. 

 Holopea paludiniformis Hall. C 39. 

 Ecculiomphalus fredericus n. sp. B 7. C 3, 6, 7. 



