690 



NORTH AMERICAN INDEX FOSSILS. 



III. Pontocypris acuminata, L, b 



37. 



Scaphiocrinus swallovi, L, d 



118. Cytherella ovatiformis, TJ, c 



38. 



S. unicus, L, d 





39. 



S. crineus, L, b 



Malacostraca. 



40. 



S. subcarinatus, L, b 



22. Tropidocaris alternata, L, a 



41. 



Scytalocrinus robustus, L, d 



*28. Palaeopalsemon newberryi, L, d 



42. 



Decadocrinus pleias, L, b 





43. 



D. aegina, L, b 



Cystoidea. 



44. 



Woodocrinus troostanus, L, d 





45. 



W. sequalis, L, d 



31. Agelacrinus squamosus, L, d 





W. merope, Li, b 



32. A. kaskaskiensis, L, d 



46. 





47. 



W. elegans, L, d 



Blastoidea. 



48. 



Eupachycrinus orbicularis, L, d 





54. 



Agassizocrinus dactyliformis, TJ, d 



3. Metablastus lineatus, L, d 



55. 



A. conicus, TJ, d 



4. M. wortheni, L, d 



60. 



Platycrinus americanus, L, d 



5. Tricoelocrinus woodmani, L, d 



61. 



P. burlingtonensis, L, d 



6. T. obliquatus, M, c, d 



62. 



P. halli, L, d 



9. Pentremites elongatus, L, d 



63- 



P. discoideus, L, d 



10. P. conoideus, M, d 



64. 



P. subspinosus, L, d 



II. P. elegans, TJ, b 



65. 



P. bonoensis, L, d 



12. P. globosus, U, c, d 



66. 



P. hemisphericus, L, d 



13. P. godoni, IT, c, d 



67. 



P. huntsvillae, L, M, d 



14. P. obesus, TJ, c, d 



68. 



P. sarae, M, c, d 



15. P. pyriformis, TJ, c, d 



70. 



Dichocrinus ficus, L, c, d 



16. P. sulcatus, TJ, d 



71. 



D. polydactylus, L, d 



17. P. cervinus, TJ, c 



72. 



D. striatus, li, d 



21. Schizoblastus melonoides, L, d 



73- 



D. inornatus, L, d 



22. S. sayi, L, d 



74. 



Talarocrinus cornigerus, M, c 



2Z. Cryptoblastus melo, L, d 



75. 



T. simplex, L, c, d 



24. Granatocrinus neglectus, L, d 



76. 



Pterotocrinus depressus, TJ, c 



25. G. norwoodi, L, d 



77. 



P. pyramidalis, TJ, c 



28. Orophocrinus stelliformis, L, d 



78. 



Acrocrinus shumardi, TJ, c 



29. 0. campanulatus, L, d 



79. 



Actinocrinus verrucosus, L, d 





80. 



A. tenuisculptus, L, d 



Crinoidea. 



81. 



A. scitulus, L, d 



5. Symbathocrinus dentatus, L, d 



82. 



A. multiradiatus, L, d 



6. S. robustus, L, c 



83. 



A. lobatus, L, d 



13. Halysiocrinus ventricosus, L, d 



84. 



A. lowei, li, d 



14. H. bradleyi, L, d 



85. 



A. pernodosus, "L, d 



25. Cyathocrinus enormis, L, d 



86. 



Cactocrinus glans, L, d 



26. C. iowensis, L, d 



87. 



C. limabrachiatus, L, d 



27. C. multibrachiatus, L, d 



88. 



C. proboscidialis, L, d 



28. C. parvibrachiatus, L, d 



89. 



C. reticulatus, L, d 



29. C. maxvillensis, TJ, b 



90. 



C. ccelatus, L, d 



31. Barycrinus meekianus, li, d 



91. 



Amphoracrinus divergens, L, d 



^2. B. sculptilis, L, d 



92. 



A. spinobrachiatus, L, d 



33. B. hoveyi, L, c, d 



93. 



Teleiocrinus liratus, L, d 



34. B. magnificus, L, d 



94. 



T. umbrosus, L, d 



35. Poteriocrinus agnatus, L, d 



95. 



Steganocrinus araneolus, L, d 



36. P. amsenus, L, d 



96. 



S. sculptus, L, d 



