Tv 
r; 
INDEX. 
Ctenacanthns (co»ih). 
pellensis, 104. 
piicalus, 104. 
Dugiunculus, 104. 
A. W 
pustulatus, 102. 
randalli, 104. 
rectus, 104. 
salop ien sis, 98. 
sculpt us, 104. 
serrulatus, 120. 
similis, 104. 
speciosus, 104. 
spectahilis, 104. 
sulctitus, 101. 
tenuirostris, 98. 
tenuist riatus, 98, 99. 
triangularis, 104. 
varies, 104. 
vetustus, i04. 
v> right!, 104. 
Ctenodoxtid.e, 250. 
Ctenodus, 250. 262. 
alatus, 2-)j. 
august ulus, 200. 
applanatus, 2GU. 
asteriscus, 241. 
caudatua, 200. 
concavus, 252. 
corrugatus, 201. 
cris talus, 224-. 251. 
dialophus, 201. 
elegans, 250. 
ellipticus, 25>0. 
fiabeiliforruis, 242. 
fossatus, 261. 
gurleyauus, 201. 
heterolophus, 261. 
imbrieatus, 206. 
interruptus, 254. 
keyserlmgi, 240. 
levis; 242. 
margmalis, 241. 
• rainutus, 242. 
monoceros, 257. 
muremsom, 2uo. 
neisoni, 242. 
obliquus, 256. 
obtusus, 261. 
oetodorsaiis. 201. 
ohioensis, 262. 
ova 
25: 
parr ulus, 24 
o 
pen prion, 20*1. 
porrectus, 261. 
pusiilus, 261. 
quaclratus, 257. 
rad atus, Ebhwald, 
2v 1. 
radiafcua, NcwUrry, 
242. 
reticulalus, 261. 
Ctenodus ( cont .). 
robertsoni, 262. 
serratus, Eichicald , 
240. 
serratus, Xen'bcrri/, 
261. 
tardus, 262. 
trachylepis, 262. 
tuberculatus, 251. 
vabasensis, 261. 
wagneri, 255. 
woerthi. 241. 
Ctenoplychius crenatus, 
207. 
C ten opty chins unilater- 
ali3, 155. 
Cyathaspis, 170. 
acadica, 173. 
bauksi, 170. 
integer, 173. 
Dictyopyge, 486. 
Didymaspis, 199-. j 
grindrodi, 199. a /?3 
Dimeracanthus, 97. 
concentricus, 97. 
Dinichthys 300 ? ^J/ a 3o/ 
corrugatus, 301. (, ‘ 
3oi. 
macculloughi, 172. 
schmidti, 173. 
sluri, 173. 
curtus, 34*1 
eifelensis, 301. 
gouldi, 301. 
hertzeri 200, 301 ',302?,t 
mtermeoius, 301. /A na/cw, 3 0 /. 
minor, Xrvherry, OHI/tvjv-i/ 
minor, Rinqtiebcrq, syjc‘- ch/c^'SE ' 
OAO "■ . ^ ‘ O , , 
•J 1 (OOf -'XJT id?. 
newberrvi, 301. , zoz. 
precursor, 302. pissdrcr/oS^S, 302 , 
ringuebergi, 302. 
terrelli, 300, 302. £ r ^u.rsc/i&/^*>(> 
tuberculatus, 302. ’t 
Diphrissa, 86. 
latidens, 86. 
rV- solidula, 86. 
symondsi, 173. DrrLACAXTnin.E, 22. 
Cycloptychius, 459. ! Diplacanthus, 23. 
car bona rins, 460. 
concentricus. 461 
Gylindracanthus, 
ornatus, 122. 
Cynopodius, 03, 154. 
crenulatus, 154. 
Cyphomalepis, 156, 
crassisunus, 24. 
zlsu£*****& assispinus. 24, 20. 
curtus. 32. 
157. 
egertoni, 156. 
Cyrtacanthus, 03, 150. 
dentatus, 150. 
! 3 * 
Hi 
I if 
i l ■ ,i 
'Dasylepis, 156. 
keyserlingi, 156. 
Dendrcdus. 322, 338. 
acutatus, 340. 
biporcatus, 338, 363. 
briarti, 340. 
compressus, 338. 
favosus, 365. 
has tat us, 338. 
incurvus, 363. 
inflex us, 340. 
latvis, 340. ; .^uX^ . 
latus, 
minor, 340. 
sigmoideus, 339. 
strigatu3, 339. 
tenuistriatus, 340. 
traquairi, 340. 
Dendropt.ych.ius, 348. 
Desmacanthus, 115. 
cloaciuus, 116. 
Dictyolepis, 156. 
bronni, 156. 
gibbus, 24. 
D 1 ■£ i \ 1 
graci is, 21. 
; ' i 1 
A 
longispinus. 26, 551. 
: . 
perarmatus, 26. 
striatulus, 24, 25. 
r - 
striatus, 23. 24. 551. 
VjT 
Diplaspis, 170. 
acadica, 173. 
«/ ^ 
Diplognathus, 312. 
mirabilis, 312. 
Dipl op ter as = Di- 
plopterus, 375. 
jef 
Diplopteras, 375. 
•• 
atfinis, 375. 
("• 
agassis. 375. 
agassizi, 375. 
- 
Dorealis, 0 / 0 . 
\ : t 
carbonarius, 387, 335. 
i 
T 
dalgleisiensis, 390. 
u > • 
gracilis, 375. 
; ^ 
maerocephalus, 375. 
9 . - 
377. 
> 7 
macrolepidotus. 373, 
r ; : 
376. 
t 
robertsoni, 380. 
. 
•* > 
Diplurus, 409. 
longicaudatus, 409. 
Dipnoi, 234. 
f « 
• 
Dipnoites, 246. 
» 
perneri, 240. 
A 
Dipriacanthus, 
V ^ 
»• 
148. 
•alcatus, 146. 
» ; 
* < v? 5 
If 
/' . . .. 
pi 
