﻿INDEX. 



559 



Ctenacanthus (cont.). 



pellensis, 104. 



plicatus, 104. 



pugiunculus, 104. 



pustulatus, 102. 



randalli, 104. 



rectus, 104. 



salopiensis, 98. 



sculptus, 104. 



serrulatus, 126. 



similis, 104. 



speciosus, 104. 



spectabilis, 104. 



sulcatus, 101. 



tenuirostris, 98. 



tenuistriatus, 98, 99. 



triangularis, 104. 



varians, 104. 



vetustus, 104. 



wrighti, 104. 

 Ctenodontid^e, 250. 

 Ctenodus, 250, 262. 



alatus, 255. 



angustulus, 260. 



applauatus, 260. 



asteriscus, 241. 



caudatus, 260. 



eoncavus, 252. 



corrugatus, 261. 



cristatus, 234, 251. 



dialophus, 261. 



elegans, 256. 



ellipticus, 256. 



nabelliformis, 242. 



i'ossatus, 261. 



gurleyauus, 261. 



keterolopbus, 261. 



imbricatus, 256. 



interruptus, 254. 



keyserlingi, 240. 



levis,. 242. 



marginalis, 241. 



minutus, 242. 



monoceros, 257. 



murchisoni, 255. 



nelsoni, 242. 



obliquus, 256. 



obtusus, 261. 



octodorsalis, 261. 



obioensis, 262. 



ovatus, 252. 



parvulus, 242. 



periprion, 261. 



porreetus, 261. 



pusillus, 261. 



qaadratus, 257. 



radiatus, Eichwald, 

 241. 



radiatus, Newberry, 

 242. 



reticulatus, 261. 



Ctenodus {cont.). 



robertsoni, 262. 



serratus, Eichwald, 

 240. 



serratus, Newberru, 

 261. 



tardus, 262. 



trachylepis, 262. 



tuberculatus, 251. 



vabasensis, 261. 



wagneri, 255. 



woertbi, 241. 

 Ctenoptychius crenatus, 



207. 

 Ctenoptychius unilater- 

 alism 155. 

 Cyathaspis, 170. 



acadica, 173. 



banksi, 170. 



integer, 173. 



rnaccullougbi, 172. 



scbmidti, 173. 



sturi, 173. 



symondsi, 173. 

 Cycloptychius, 459. 



carbonarius, 460. 



eoncentricus, 461. 

 Cylindracanthus, 

 120. 



ornatus, 122. 

 Cynopodius, 93, 154. 



crenulatus, 154. 

 Cyphomalepis, 156, 

 157. 



egertoni, 156. 

 Cyrtacanthus,23, 150. 



dentatus, 150. 



Dasylepis, 156. 



keyserlingi, 156. 

 Dendrodus, 322, 338. 



acutatus, 340. 



biporcatus, 338, 363. 



briarti, 340. 



compressus, 338. 



favosus, 365. 



hastatus, 338. 



incurvus, 363. 



inflexus, 340. 



lsevis, 340. 



latus, 338. 



minor, 340. 



siguioideus, 339. 



strigatus, 339. 



tenuistriatus, 340. 



traquairi, 340. 

 D endr opty chius,_348 . 

 Desmacanthus, 115. 



cloacinus, 116. 

 Dictyolepis, 156. 



bronni, 156. 



Dictyopyge, 486. 

 Didymaspis, 199. 



grindrodi, 199. 

 Dimeracanthus, 97. 



eoncentricus, 97. 

 Dinichthys, 300. 



corrugatus, 301. 



curtus, 301. 



eifelensis, 301. 



gouldi, 301. 



hertzeri, 300, SOI,. JO,?. 



intermedius, 301. 



minor, Newberry, 301. 



minor, Ringuebcrg, 



302. 



newberryi, 301. 



precursor, 302. 



ringuebergi, 302. 



terrelli, 300, 302. 



tuberculatus, 302. 

 Diphrissa, 86. 



latidens, 86. 



solid ula, 86. 



DlFLACAXTIIID.E, 22. 



Diplacanthus, 23. 



crassisimus, 24. 



crassispinus, 24, 26. 



curtus, 32. 



gibbus, 24. 



gracilis, 21. 



longispinus, 26, 551. 



perarmatus, 26. 



striatulus, 24, 25. 



striatus, 23, 24, 551. 

 Diplaspis, 170. 



acadica, 173. 

 Diplognathus, 312. 



mirabilis, 312. 

 Diplopterax = Di- 

 plopterus, 375. 

 Diplopterus, 375. 



affinis, 375. 



agassis, 375. 



agassizi, 375. 



borealis, 375. 



carbonarius, 387, 3S8. 



dalgleisiensis, 390. 



gracilis, 375. 



macrocephalus, 375, 

 377. 



macrolepidotus, 373, 

 376. 



robertsoni, 386. 

 Diplurus, 409. 



longicaudatus, 409. 

 Dipnoi, 234. 

 Dipnoites, 246. 



perneri, 246. 

 Dipriacanthus, 93, 

 148. 



f alcatus, 146. 



