895 



Fig. 



253. C. mamillatum, Bisso, 148. 



254. — cincrascente, Pallas, 150. 

 255, 256. — turritella, Quo*/, 147. 



257. — Layardii, A. Ad. 151. 



258. — clathratum, A. Ad. 152. 

 259, 260. — septemstriatura, <Say, 158. 



(The " Pyrazus " group.) 



261. — palustre, Linn. 153. 



262. — sulcatum, Born, 154. 



263. — semitrisulcatum, Bolton, 



155. 



264, 265. — zonale, Brut/. 157- 



266. — Australe, Quoy, 156. 



267. — Ebeninum, Brng. 159. 



268. — pacificum, Sowb. 160. 



(Genus " Telescopium.") 



269. — telescopium, Linn. 179. 

 (270. — lseve), Quoy, 23. Belongs 



to another group. 



Plate CLXXXVT. 



(Group " Pyrazus," — continued) 

 271. — obtusum, Lamk. 161. 



1 



ig- 









272. 



C. 



Kieneri, Homb. 162. 





273. 



— 



rhizoporarum,^. Ad. 163 





274. 



— 



Sinense, Phil. 165. 





275. 



— 



corneum, A. Ad. 168. 





276. 



— 



decollatum, Linn. 164. 



277, 278. 



— 



ornatum, A. Ad. 167. 





279. 





Chai'bonnievi, Petit, 166 



280 



-282. 





varicosum, Sowb. 169. 





283. 





Morcliii, A. Ad. 170. 



284 



-286. 





Montagnei, Pi Orb. 171. 





287. 





subcarinatum, Sowb. 173 





288. 





bicarinatum, Gray, 172. 





289. 





rissoideum, Sowb. 176. 





290. 





scalariforme, Say, 174. 



291, 292. 





costatum, Wood, 175. 





293. 





plumbeum, Sowb. 177 





294. 





pauxillum, A. Ad. 178. 





(The 



"Tympanotomus " group.) 





295. 





retiferum, Sowb. 184. 



296 



-299. 





fluviatde, Potiez, 183. 



300, 301. 





fuscatum, Linn. 180. 





302. 





multigranum, Sowb. 182 





303. 





radula, Linn. 181. 



ALPHABETICAL LIST OF SPECIES. 



aculeatus, Gm., v. Ebeninum, 159. 

 Adansoni, Brug., 37, f. 45. 

 adustum, Kirn., 70, f. 48. 

 alatum, Phil., v. fluviatile, 183. 

 albo-vittatum, C. B. Ad., v. septcm- 



striatum, 158. 

 alternatum, Sowb., 98, f. 70, 73, 179 



algiecola, C. B. Ad., v. Eburneum, 31. 

 Algierianum, Sowb., 129, f. 230, 231. 

 aluco, Linn., 7, f. 34, 35. 

 ambiguum, C. B. Ad., v. costatum, 175. 

 annulatus, Mart., v. torulosum, 35. 

 annularis, Gm., v. torulosum, 35. 

 armatum, Phil., 41, f. 68, 96 

 6 A 



