228 



NEW YORK STATE MUSEUM 



Cyathaspis, 27, 28, 30. 



acadica, 12, 28. 

 Cyrtacanthus, 66, 193. 



dentatus, 13. 



incurvus, 13. 



Dana, James D., classification of the New 

 York Devonic, 11; 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 ; N.ew 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, simJ- 

 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, 1 14, 

 118-26, 140, 142, 143, 14s, 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, 136, 

 144, 199, 214. 



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



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



137. 138, iS5- 



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. 



terrelH, 19, 118, 119, 125, 130, 131, 134. 



tuberculatus, 15, 16, 21, 137-38, 139. 

 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, 27, 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, 151, 157, 158, 



165, 179, 180. 



