NEW YORK STATE MUSEUM 



228 



Cyathaspis, i-j. 28, 30. 



acadica, 12, 28. 

 Cyrtacanthus, 66, 193. 



dentatus, 13. 



incurvus, 13. 



Dana, James D., classification of the New 

 York Devonic, 1 1 ; cited, 189. 



Davis, J. W., cited, 75. 



Dawson, J. W., cited, 190, 191. 



Dean, Bashford, acknowledgments to, 

 12; cited, 30. 55, 56, 57. 58- 67, 73, 90. 

 96, 97, 99, 103, 105, III, 122, 123, 130, 

 149, 156, 178. 



Delaware, O., 19, 85, 146. 



Delaware county, 20. 21, 22. 51, 52, 74. 

 139, 162, 169. 



Delaware limestone. 9, 13, 14- 67, 80, 84. 

 112, 113, 146, 169. 



Delhi, 22, 168. 



Delphi, 133. 



Dendrodus arisaigensis, 13. 



Devon Point, Col., 20, 54. 



Devonic, boundaries of local provinces 

 and subprovinces may be traced by 

 faunal changes, 186; of Gaspe, 190; 

 faunas, provincial character, 186; an 

 era of provincial development of marine 

 faunas, 185; New York, classification 

 according to John M. Clarke, 10; class- 

 ification according to James D. Dana, 

 II ; two geological provinces, 184; ver- 

 tebrates, distribution, 187. 



Devonic, Middle, faunal distribution, 188; 

 fauna of the Hudson Bay region, simi- 

 larity to the Mississippian Onondaga, 

 188; Ulsterian and Erian as divisions 

 of, 188; faunal list showing distribution 

 of fossil fishes. 193. 

 ? Dictyorhabdus priscus, 12, 67. 

 Dinacanthodes, 83. 

 Dinichthyid, 17. 



Dinichthys. 90. 91. 94, 95- 98. 105, 114, 

 118-26, 140, 14^- 143. 145. 149. 150. 

 151, 152. 193; dentition of Neocerato- 

 dus and, 96-97. 

 sp., 16. 17. 22, 139, 206. 

 canadensis, 15. 

 clarki, 19. 



curtus, 19, 21, 138-39- 

 dolichocephalus, 17, 135-36, 204. 

 gouldi, 19. 

 gracilis, 19. 

 halmodeus, 15, 126-29, 131, 135, 13^^. 



144, 199, 214. 

 herzeri, 19, 118, 119, 127, 129, 131, 134- 

 intermedins, 19. 119- 120, 129, 130, 131, 



137- 138, 155- 

 lincolni, 15, 129-30, 208. 

 minor, 19, 134. 



newberryi, 17, 133-34. 206, 220. 

 precursor, 14, 138. 

 prentis-clarki, 19. 

 pustulosus, 15. 16, 17, 20, 130-33. 139. 



198, 204, 218. 

 ringuebergi, 17, 134. 

 terrelli, 19, 118, 119. 125, 130, 131, I34- 

 tuberculatus, 15, 16, 21, 137-38. I39- 

 Dinomylostoma, 94, 95. 97- 98, 121, 151. 



beecheri, 17, 151-56, 222, 224. 

 Diplacanthidae, 23, 64. 

 Diplacanthus horridus, 16. 



striatus, 16. 

 Diplodus, 58-60. 

 sp., 20. 



priscus, 20. 59, 196. 

 striatus, 20, 60, 197. 

 Diplognathus, 97. 



mirabilis, 19. 

 Dipneusti, 23, 2y. 88-164, 91, 92, 95- 

 Dipnoan dental plates, 198. 203. 

 Dipnoans, 88, 89. 90. 91, 92, 93. 94. 95- 99- 

 104, 105. 108, 149- 150, 15I' 157. 158, 

 165, 179, 180. 



