Ctenaca.nth.ias ( cont .). 
pellensis, 104. 
pliealus, 104. 
pugiuncuius, 104. 
pustulatus, 102. 
randalli, 104. 
rectus, 104. 
salopiensis, 98. 
sculptus, 104. 
serrulatus, 126. 
INDEX. 
* 
Ctenodus {cord.). 
robertsoui, 262. 
serratus, Eichwald, 
240. 
serratus, Newberry, 
261. 
tardus, 262. 
trachylepis, 262. 
t.uberculatus, 251. 
vabasensis, 261. 
559 
i f 
’9, 
;V 
similis, 104. 
speciosus, 104. 
spectabilis, 104. 
sulcutus, 101. 
tenuirostris, 98. 
tenuistriatus, 98, 99. 
wagnen, 25o. 
woerthi. 241. 
Ctenoptyehius 
207. 
Ctenoptyehius 
alis. 155. 
Cyathaspis, 
rians, 104. acadica, 173 
tiistus, 104 bauksi. 170. 
triangularis, 104 
crenatus, 
unilater- 
170. 
Dictyopyge, 
Didymaspis, 191U / 
grind rod i, 199. Jjj ^ 
Dimeracanthus, 97. 
concentricus, 97. 
Dinichthys 300..^J/ a 3o , 
C l tus, oOl. Corx Q Jo/ . 
eitelensis, oOl. a// 0 o/ 
gouldi ,301. 3 or. 
hertzeri, 300, 3 01, 
intermedins, 301. //vn-?/f^o,3 Of. 
minor, Ncvhrrry, >( 51 /r^rt A 
Rmgucbcrg, rri & ckf>.aj^fp 
m c 
. iiilk 
: ill 
$ 
t}<sv_ 
jO ce /3-> S, 3 1? 2. 
vana 
ve 
w right!, 104. 
Otenouoxtid.e, 250. 
Ctenodus, 250, 202. 
alatus, 255. 
august ulus, 260. 
applanaius, 260. 
asteriscus, 241. 
caudatus, 260. 
concavus, 252. 
corrugatus, 261. 
crist aius, 254, *251. 
dialophus, 261. 
elegans, 256. 
ellipticus, 256. 
iiabellifonnis, 242. 
fossatus, 261. 
gurieyauus, 261. 
heterolopbus, 261. 
imbricatus, 256. 
interruptus, 254. 
keyserlmgi, 240. 
levis.. 242. 
marginalia, 241. 
• raiautus, 242. 
mouoceros, 257. 
rnurclusom, 2 oo. 
nelsoni, 242, 
obliquus, 256. 
obtusus, 261. 
octodorsalis, 261. 
ohioensis, 262. 
ovat*^ 252. 
parvuius, 242. 
periprion, 261. 
porrectus, 261. 
pusillus, 261. 
quadratua, 257. 
rad atus, Eichwald, 
2-i 1. 
radiatua, Newberry , 
242. 
reticulut us, 261. 
integer, 173. 
macculiougbi, 17 
sehmidti, 173. 
sluri, 173. 
minor, 
302. 
new berry i, 301. p 
precursor, 302. 'yoz/sta/osrjs, 302. 
ringuebergi. 302; 
terrelli, 300, 302. £ rctcc r^ch a lA & >i 
tuberculatus, 302. * 
- 
t - : 5 l 
■m 
n* 
i 
iif 
* 
Dyphrissa, 86 . 
latidens, 86. 
ft2>. solidula, 86. 
symondsi, 173. Diplacaxthiiee, 22. 
Cycloptychius, 459. { Diplacanthus, 23. 
carbonariua, 400. 
Cylin dr acanthus, a,c 
120 . 
ornatus, 122. 
Cynopodius, 03, 154. ^ 
crenulatus, 154. 
Cyphcmalepis. 156, 
157. 
egertoni, 156. 
Cyrtacanthus,85,150. 
dentatus, 150. 
338. 
303. 
Dasylepis, 156. 
keyserlingi, 156. 
Dendrcdus. 322. 
acutatus, 340. 
biporcatus, 338. 
briarti, 340. 
compressus, 338. 
favosus, 365. 
hastatus, 338. 
incurvus, 363. 
inflexus, 340. 
lams, 340. 
latus, 338. 
minor, 340. 
sigmoideus, 339. 
strigatus, 339. 
tenuistriatus, 340. 
traquairi, 340. 
Dendropry chius, 348. 
Desmacanthus, 115. 
cloaeinus, 116. 
Dictyolepis, 156. 
bronni, 156. 
crassislraus, 24. 
^k^^fassispinus. 24, 26. 
■ i 
^ • curLug. 
U a 
gibbus, 24. 
(> 
gracilis, 21. 
r V v, . . 
iongispinus, 26, 551. 
perarmatus, 26. 
**Jr& 
striatulus, 24. 25. 
striatus, 23. 24, 551. 
Diplaspis, 170. 
acadica, 173. 
V-> 
Diplognathus, 312. 
r <> ; . 
-ii ’ - . 
mirabilis, 312. 
Diplopterax = D i- 
luJUT' 
- 
plopterus, 375. 
Diploptems, 375. 
atlinis, 375. 
agassis, 375. 
agassizi, 375. 
borealis, 375. 
carbonarius, 387, 355. 
dalgleisiensis, 390. 
gracilis, 375. 
raaerocephalus, 375. 
377. 
macrolepidotus, 373, 
376. 
robertsoni, 380. 
Diplurus, 409. 
longicaudatus, 409. 
Dirsoi, 234. 
Dipncites, 246. 
perneri, 246. 
Dipri acanthus, 
148. 
talcatus, 146. 
Ki. 
r 
%-i 
i* : 
l1: 
y 
±5 r 
? 
It 
1? 
/, 
id-1 
lit 
r 
