ALPHABETICAL INDEX. 
[Note . — The numbers of pages on which merely incidental references occur 
are printed in italics.] 
Acanthias, 31. 
bicarinatus, 458. 
latideus. 31. 
monspeliensis, 457. 
radicans, 31. 
serratus, 32. 
vulgaris. 32. 
Acanthidimn, 33. 
Acanthobatis, 89. 
eximius, 89. 
tuberculosus, 89. 
‘Acipenser tuberciilosus,” 
89. 
Acrodobatis, 348. 
obliqmis, 348. 
serra, 348. 
Acrodus, 279. 
acutus, 282. 
aflinis, 298. 
althansii, 248. 
angu8tiis,3/iiws?‘rr, 283. 
angustus, Gichel. 298. 
anningia?, 207y 289, 
292. 
arietis, 283. 
braunii, 279, 2S0, 
cretaceus, 334. 
elegans, 320. 
emmonsi, 298. 
falcifer, 333. 
falsus, 400. 
flemingianus, 298. 
flexuosus, 290. 
gaillardoti, 279, 209. 
gastaldi, 299. 
gibberulua, 283. 
hiriido, 29(>. 
humilis, 298. 
illingworthi, 297. 
iuimarginatu.s, 299. 
Acrodus {cont.). 
keuperinus, 281. 
larva, 35. 
laterals, 280, 299. 
latus, 283. 
leiodus, 295. 
loiopleurus, 295. 
levis, 290. 
inicrodus, 299. 
minimus, 2o5, 282. 
nitidua, 297. 
nobilis, 283, 287, 280. 
ornatus, 290. 
personati, 299. 
polydictyos, 330. 
pidvinatup, 299. 
punctatiis, 
piistulosus, 281. 
rugosus, 335. 
rugosus, Shmidt ep., 
299. 
semtnigosiis. 293. 
simplex, 290. 
spitzbergensis, 209. 
suhstriatus, 2^)9. 
triangularis, 152. 
undulatus, 289. 
virgatus. 299. 
Actinobatis, 85. 
ornata, 88. 
Aellopos, 77, 157. 
elongatus, 78. 
wngneri, 108. 
Aetobatis, 127. 
arciiatua, 130. 
bi*evisulcus, 130. 
convexus, 130. 
exiniius, 131. 
giganteus, 130. 
irregularis, 128, ISO. 
Aetobatis {cont.). 
marginalis, 129. 
menegbinii, 131. 
omaliusi, 131. 
omiliusi, var. curti- 
dens, 131. 
omaliusi, var. hitidons, 
131. 
perspicuus, 131. 
profundus. 131. 
rectus, 128. 
subarcuat.us, 
subcon vexus, 13<-), 
sulcntus. 131. 
tardiveli, 131. 
Aganodus, 2, 3. 
apicalis, 10. 
undatus, 10. 
Agassizodus, 238. 
cornigatiis, 239. 
scitiilus, 239. 
variabilis, 2S8, 239. 
virginianus, 239. 
Ageleodus, 55. 
diadeinu, 5.5. 
Alexandrinum, 153. 
molinii, 153. 
Alopecias, 375. 
I acuarius, 375. 
! gigas. 375, S83. 
\ hassei, 370. 
Alopiopsis, 437. 
cuvieri, 437. 
plejodon, 437. 
Amblypristis, 75. 
che<q>s, 75, 
Amphicentrum, 459. 
Anacanthus, 153. 
zigni, 153. 
Ancistrodon, 429. 
