LIST OF ILLUSTEATIOJSTS. 



PLATES. 



Facing page. 



1. Cystidea of group 1 138 



2. Cystidea of group 1 138 



3. Cystidea of group 1 138 



4. Crinoidea of group 1 138 



5. Crinoidea of groups I and II 138 



6. Crinoidea of groups I and II 138 



7. Crinoidea of gi-oups I and II 138 



8. Crinoidea of group II 138 



9. Crinoidea of group II 138 



10. Crinoidea and Blastoidea of group II 138 



11. Crinoidea and Cystidea of groups II and III 138 



12. Ranges of the subspecies of Dryohates scalaris 160 



13. New England Cladocera 170 



14. New England Cladocera 170 



15. New England Cladocera 170 



16. New England Cladocera 170 



17. New England Cladocera .■.....• 170 



18. New England Cladocera 170 



19. New England Cladocera 170 



20. Amia compressa 262 



21. Amia compressa. Amia/asciata 262 



22. Amia aroubiensis. Upper figure. Amia/asciata. Lower figure 262 



23. Amia novemfasciata 262 



24. Amia robusta 262 



25. Amia multilineata 262 



26. Anterior part of skull of Brachychampsa montana 302 



27. Axit^riov Tpaxt oi skxiW oi Brachychampsa montana. Palate view 302 



28. New Bermuda moUusks 307 



29 . West American Alvania 362 



30. West American Alvania 362 



31 . West American Alvania 362 



32. West American Alvania 362 



33. Crystallized variscite from Utah 430 



34. 1. Amia diencsea. 2. A. parvula. 3. A.uninotata 446 



35. 1. Aviia striata. 2. A. alhomarginata. 3. A. atrogaster 446 



36. 1. Amia (Amioides) grossidens . 2. Neamia octospina. 3. A. hyalina 446 



37. 1. Amia diver sa. 2. A. nigrocincta. 3. Cheilodipterus nigrotxvdatus 446 



38. 1. Cheilodipterus zonatiis . 2. Synagrops serratospinosa. 3. Hynnodus mega- 



lops 446 



39. Maxilla of Globidens alabamaensis 484 



40. Maxilla of Globidens alabamaensis 484 



41. West American mollusks of the genus Cingula 488 



42. Pentanchus profundicolus 489 



IX 



