895 



Fig. 



253. C. mamillatum, Risso, 148. 



254. — cinerascente, PaZ/os, 150. 

 255, 256. — turritella, Quo?/, 147. 



257. — Layardii, J. Ad. 151. 



258. — clathratum, A.Ad.1^%. 

 259, 260. — septemstiiatum,/S«j/,15S. 



(Tlic " Pyrazus " group.) 



261. — palustre, Linn. 153. 



262. — sulcatum, Born, 154. 



263. — semitrisulcatum, Bolton, 



155. 

 264, 265. — zonale, Bnig. 157. 



266. — Australe, Quay, 156. 



267. — Ebeninum, Brug. 159. 



268. — pacificum, Sowb. 160. 



(Genus " Telescopium.") 



269. — telescopium, Linn. 179. 

 (270. — Iseve), Quoy, 23. Belongs 



to another group. 



Plate CLXXXVI. 



(Groui) " Pyrazus," — continued.) 

 271. — obtusum, Lamk. 161. 



Fig. 



272. C. 



273. — 



274. — 



275. — 



276. — 

 277,278. — 



279. — 

 280-282. — 



283. — 

 284-286. — 



287. — 



288. — 



289. — 



290. — 

 291,292.— 



293. — 



294. — 



Kieneri, Homb. 162. 

 rhizoporarum,/^. Ad. 163. 

 Sinense, PJiil. 165. 

 corneum, A. Ad. 168. 

 decollatum, Linn. 164. 

 oniatum, A. Ad. 167. 

 Charbonnieri, Betil, 166. 

 varicosum, Bowb. 169. 

 Morchii, A. Ad. 110. 

 Montagnei, i)'0/-i. 171- 

 subcarinatum, ^o?c*^. 173. 

 bicarinatum. Gray, 172. 

 rissoideum, Sowb. 176. 

 scalariforme, Say, 174. 

 costatum, J food, 175. 

 plumbeumi, Sotvb. 177. 

 pauxillum, A. Ad. 178. 



(The "Tympanotomus " group.) 



295. — retiferum, Sowb. 184. 

 296-299. — fluviatile, Fotiez, 183. 

 300, 301. — fuscatum, Linn. 180. 



302. — multigramim, Sowb. 182. 



303. — radula, Liwi. 181. 



ALPHABETICAL LIST OF SPECIES. 



aculeatus, Gm., v. Ebeninum, 159. 

 Adansoni, Brug., 37, f. 45. 

 adustum, Kien., 70, f. 48. 

 alatum, Phil., v. fluviatile, 183. 

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



striatum, 158. 

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



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

 Algierianum, Soiob., 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. 

 arraatum, Phil., 41, f. 68, 96. 



() A 



