ALPHABETICAL INDEX 
OF 
GENERA AND SPECIES. 
[Names which are regarded as synonyms or as invalid are printed in italics.] 
Achelo'is, 1. 
Actinoceras, 1G4. 
baccatum, 174. 
Backi, 182. ^ 
Beloitense, 171. 
Bigsbyi, 168, 
Bigsbyi, 171. 
Blak^i, 176. 
Breynii, 193. 
capitolinum ( = Jovellania Cap- 
itolina), 174, and Errata. 
cf. cochleatum, 178. 
cochleatum, 178. 
crebriseptum, 173. 
giganteuin, 187. 
imbricatum, 180. 
inops, 193. 
lamellatum, 180. 
Lyoni, 168. 
menclax, 166, 
nummulariiim, 176. 
'pymmidatum, 188. 
remotiseptum, 172. 
BicHardsoni, 172. 
Eichardsoni, 171. 
Simmsii, 188. 
Sowerbyi, 191. 
spheroidale, 186. 
striatum, 187, 190. 
subconicum, 175. 
vertebratum, 185. 
Whitei, 184. 
sp., 178. 
sp., 184. 
Amimonu?^ 262. 
Amplexiis ornatus, 309. 
Apioceras fusiforme, 259. 
Aploceras, 262. 
cinctum, 311. 
Verneuilianum, .308- 
Ascoceras, 246, 334. 
Barrandei, 248. 
Bohemicum, 252. 
Murchisoni, 249. 
Verneuili, 250. 
Cameroceras, 129, 
Camxmlites, 262. 
suhventricosus, 317. 
Campylocems, 262. 
unguis, 116. 
Cochleati, 164. 
Cochlioceras avus, 146. 
Conilites, 164, 262. 
uvgulatus, 116. 
Conoceras, 322. 
Conotubular ici, 164. 
Cuvieri, 172. 
Conularia teres, 121. 
Cranoceras, 262. 
depressurn, 266. 
Creseis primcBva, 18. 
SedgwicJcii, 29. 
ventricosa, 18. 
Cryptoceras, 246, 
Cycloceras 
annidatum, 53, 
cuncellatum, 149. 
z 
