6/8 



NORTH AMERICAN INDEX FOSSILS. 



17. Jsekelocystes hartleyi, TJ, c 



18. Pseudocrinites gordoni, TJ, c 



19. P. clarki, TJ, c 



20. Callocystites jewetti, L, b 



21. C. canadensis, L, b 



22. Sphaerocystites multifasciatus, TJ, c 



23. S. bloomfieldensis, TJ, c 

 36. Zophocrinus howardi, L, e 



Blastoidea. 

 2. Troostocrinus reinwardti, L, d 



Crinoidea. 



1. Pisocrinus milligani, L, d 



2. P. gorbyi, L, d 



3. Stephanocrinus angulatus, L, b 

 12. Calceocrinus radicula, L, b 



23. Botryocrinus polyxo, L, e 



24. Cyathocrinus cora, L, e 



57. Coccocrinus bacca, L, d 



58. Marsipocrinus tennesseensis, L, d 



59. M. praematurus, L, d 



119. Periechocrinus christyi, L, d 



120. P. chicagoensis, L, e 



121. 



P. marcouanus, L, e 





122. 



P. ornatus, L, d 





123. 



P. tennesseensis, Li, d 





153. 



Thysanocrinus inornatus, L, e 



154. 



T. occidentalis, Ij, e 





155. 



T. pentangularis, L, e 





156. 



Lampterocrinus tennesseensis, 



L,d 



161. 



Lyriocrinus dactylus, L, b 





162. 



L. melissa, L, d 





169. 



Siphonocrinus nobilis, L, e 





170. 



Macrostylocrinus striatus, L, 



d 



171. 



Melocrinus oblongus, L, d 





172. 



M. roemeri, L, d 





180. 



Eucalyptocrinus milligani, "L, 



d 



181. 



E. coelatus, L, b 





182. 



var. levis, L, b 





183. 



E. crassus, L, d 





184. 



E. elrodi, L, d 





185. 



E. magnus, L, d 





186. 



E. tuberculatus, L, b, d, e 





187. 



Callicrinus longispinus, L, e 





188. 



Crotalocrinus americanus, L, 



e 



189. 



Camarocrinus stellatus, TJ, b, 



c 



192. 



Ichthyocrinus laevis, L, b 





193- 



Lecanocrinus macropetalus, L 



,, b 



Devonic Faunas. 

 The following geographic provinces are recognized : 



(a) Maine and eastern Canada. 



(b) Eastern New York, eastern Pennsylvania and New Jersey. 



(c) Southern Appalachians. 



(d) Central and western New York. 



(e) Michigan Basin (Michigan, western Ontario, northern 



Ohio, northern Indiana, northern Illinois, and Wis- 

 consin). 



(/) Falls of the Ohio and southern Ozarks (including 

 Oklahoma). 



(g) Northern Ozark and Iowa. 



(h) Winnipeg and Mackenzie River. 



(i) Rocky Mountains (including Nevada and Utah). 



FORAMINIFERA. 



♦14. Calcisphsera robusta, M, e, 



PORIFERA. 



4. Dictyospongia sceptum, TJ, d 



5. Prismodictya prismatica, TJ, d 



6. Hydnoceras tuberosum, TJ, d 



Graptolites. 

 4. Dictyonema hamiltonise, M, d, e 



