ALPHABETICAL INDEX 
OP 
GENEKA A}sD SPECIES. 
[Xames which are regarded as synonyms or as invalid are printed in italics.] 
Actincceras, 382. 
sph^roidale, 383. 
striatum, 382. 
Aganid^s, 180, 335. 
Aturi, 351. 
zigzag, 351. 
Agamies, 335. 
Aipoceras, s. g. {see Gvroceras), 
68 . 
compressuin, 6D. 
Ainmonites, 335. 
Trask ii, 304. 
Wapperi, 342. 
Angulithcs, 179. 
Aploceras, 53, 70. 
parddoxicum, 71. 
tessellatum, 66. 
Apsidoceras ?, 53. 
Asymptoceras, 165. 
bifrons, 176. 
ryclostomus, 174. 
dorsnle, 169. 
Aturia, 335. 
{Nautilus) Aturi, 352. 
Aturi, 351. 
, var. Australis, 
354. 
Australis, .354. 
Charleswoithi, 346. 
Delphinus, 349. 
lingulatus, 343. 
yiorrisii, .352. 
Parkinsoni, 347. 
z\cz-dc, .342. 
Aturia 
ziezac, var. Australuf, 354. 
ziczac, 346, 351, 354. 
Barrandeoceras, 77. 
Boheiuicum, 79. 
Holtianus, 82. 
oriens, 84. 
Sacheri, 83. 
Sternbergi, 80. 
tyrannus, 81. 
Bisiphytes, 179. 
Cenoceras inter niediu'in, 193. 
Centroceras, s. g. {see Temuochei- 
lus), 163. 
tetragonum, 164. 
Clydonautilus, s.g.{see Nautilus), 
182. 
Queustedti, 188. 
spirolobus, 187. 
Clymenia, 43, 335. 
aiitiquissima, 51. 
Morrisi, 351. 
Odini, 50. 
rarospira, 45, 52. 
zigzag, 351. 
j Coelonautilus, 105. 
bistrialis, 130. 
cariniferus, 112. 
j Derbiensis, 131. 
I Derbiensis, var. globularis, 
132. 
1 global us, 127. 
PAItT II. 
