464 
INDEX. 
205, 
\r 
e 
Cochliodus, 170, 
209, 212, 217. 
acutus, 212. 
compactus, 213. 
con tortus, 191, 206, 
210, 214. 
costatus, 208. 
(?) crassus, 188. 
larainaris, 200. 
latus, 208. 
leidyi, 208. 
magnus, 176, 177. 
nitidus, 215. 
nobilis, 208. 
obliquus, 212. 
oblong'us, 209, 216. 
occidentalis, 199. 
striatus, 192, 193. 
tenuis, 208. 
triangularis, 201. 
van hornii, 208. 
Compsacantlius, 2. 
lsevis, 9. 
major, 5. 
triangularis, 7. 
Copodus, 91. 
angulatus, 98. 
auriculatus, 95, 97. 
convexus, 99. 
cornutus, 91, 93, 98. 
(?) cuneatus, 98. 
falcatus, 94. 
furcatus, 94. 
lingua, 94, 97. 
lunulatus, 92. 
minimus, 95. 
oblongus, 96. 
planus, 96. 
prototypus, 97. 
pusillus, 99.- 
spatulatus, 93, 97. 
van hornii, 99. 
variabilis, 99. 
Corax, 422. 
affinis, 433, 427. 
antiquus, 429. 
appendiculatus, 423, 
427, 437, 443. 
Lf-%6". vjboreaui, 425. 
egertoni, 439, 
elougatus, 425. 
falcatus, 424, 438. 
fissuratus, 429. 
heterodon, 424. 
incisus, 429. 
kaupii, 423, 435. 
kevis, 429. 
maximus, 424, 427. 
obliquus, 424. 
parallelus, 423. 
pedemontanus, 442. 
L ! j * « 
Corax ( cont .). N " 
planus, 427. 
pristodontus, 423 ,445. 
^pygmams, 429. 
rrapezoidalis, 423. 
trituratus, 33. 
Cranodus, 229. 
zonatus, 229. 
Crossorhinus, 347, 
410. 
Cymatodns, Traut- 
schold, 61. 
plicatulus, 62. 
reclinatus, 62. 
Cymatcdns, Newb. § 
Worth., 458. 
oblongus, 458. 
Cyrtonodus, 216. 
gibbus, 216. 
liornei, 216. 
Ctenacanthn s, 230, 
241. 
aequistriatus, 244. 
costellatus, 242. 
hybodoides, 242. 
major, 242. 
minor, 244. 
nodosus, 242. 
(?) serrulatus, 242. 
Gtenopetalus, 49. 
bellulus, 53. 
crenatus, 51. 
limatulus, 53. 
medius, 53. 
occidentalis, 53. 
serratus, 52. 
vinosus, 54. 
Ctenoptychius,49, 54. 
aciculatus, 56. 
acuminatus, 53. 
apicalis, 50. 
bellulus, 53. 
compactus, 53. 
cristatus, 56. 
dentatus, 51. 
denticulatus, 55. 
digitatus, 59. 
elegans, 53. 
liercynise, 458. 
limatulus, 53. 
lobatus, 51. 
macrodus, 51. 
medius, 53. 
occidentalis, 53. 
ordii, 54. 
pectinatus, 55. 
pertenuis, 53. 
priscus, 54. 
semicircularis, 53. 
serratus, 52. 
stevensoni, 54. 
tripartitus, 54. 
vinosus, 54. 
Cnrtodus, 307. 
corallinus, 320. 
rigauxi, 460. 
Cyclarthrus, 156. 
macropterus, 156. 
Cyclobatis, 155. 
major, 155. 
oligodactylus, 155. 
Dactylcdus, 56. 
concavus, Trautschold, 
59. 
concavus, Sf. John § 
Worthen, 59. 
excavatus, 59. 
inflexus, 59. 
lobatus, 59. 
minimus, 60. 
princeps, 60. 
Deltcdopsis, 186, 217. 
affinis, 217. 
angustus, 200. 
(?) bialveatus, 217. 
(?) convexus, 217. 
(?) convolutus, 217. 
(?) exornatus, 218. 
(?) inflexus, 218. 
(?) keokuk, 218. 
(?) sancti-ludovici, 218. 
Deltodus, 185, 195, 212, 
217. 
alatus, 199. 
aliformis, 200. 
angularis, 188. 
angustus, 200. 
cinctulus, 200. 
cinctus, 200. 
cingulatus, 200. 
circinans, 200. 
complanatus, 189. 
concha, 198. 
contortus, 200. 
expansus, 196, 197, 
213. 
fasciatus, 200. 
gibbus, 197. 
grandis, Newb. 
Worth., 188. 
grandis, Trautschold, 
sp., 200. 
incrassatus, 200. 
intermedins, 200. 
laminaris, 200. 
latior, 200. 
littoni, 200. 
mercurei, 201. 
obliquus, 201. 
occidentalis, 199. 
ornatus. 
