286 
Aug. F. Foerste 
7. Calapoecia cribriformis Nicholson 
8. Tetradium Ontario Hall 
9. Dermatostroma papillatum James 
10. Dermatostroma scabrum James 
11. Dermatostroma glyptum Foerste 
12. Stromatocerium granulosum James 
13. Stromatocerium montiferum Ulrich 
14. Stromatocerium indianense James 
15. Stromatocerium huronense australe Parks 
16. Lingula covingtonensis Hall and Whitfield 
17. Lingula vanhornei Miller 
18. Lingula brookvillensis n. sp. 
19. Trematis crassipuncta Ulrich 
20. Trematis fragilis Ulrich 
Craniae of the Richmond group 
21. Crania scabiosa Hall 
22. Crania multipunctata Miller 
23. Crania costata James 
24. Crania asperula James. 
25. Crania alternata James 
Craniae from the Economy member of the Richmond group 
26. Crania dyeri Miller 
27. Crania percarinata Ulrich 
28. Crania parallela Ulrich 
29. Crania socialis Ulrich 
30. Crania albersi Miller and Faber 
31. Whitella cuneiformis Miller 
32. Whitella richmondensis Miller 
33. Cyrtodonta cuneata Miller 
34. Anomalodonta alata Meek 
35. Anomalodonta costata Meek 
36. Byssonychia robusta Miller 
37. Cymatonota cylindrica Miller and Faber 
38. Modiolopsis versaillesensis Miller 
39. Modiolopsis brevantica n. sp. 
40. Pholadomorpha pholadiformis Hall 
41. Pholadomorpha divaricata Hall and Whitfield. 
42. Pholadomorpha capax Miller 
43. Pholadomorpha corrugata Miller and Faber 
44. Pholadomorpha sulcata Miller and Faber 
45. Rhytimya cymbula Miller and Faber 
46. Vallatotheca manitoulini Foerste 
47. Endoceras arcuatum James, J. F. 
48. Caliculospongia pauper, gen. et sp. nov. 
49. Carneyella and Isorophus, gen. nov. 
