304 



BULLETIN 181, UXITED STATES NATIONAL MUSEUM 



peruvianus, Neocyclotus, 252. 



Poteria, 252. 

 petiti, Megalomastoma, 48, 49, 50, 284. 

 petricola, Ptychocochlis, 104, 286. 

 pichiuchense, Aperostoma, 187, 191, 280, 



288. 

 piscinalis, Valvata, 141. 

 pittieri, Aperostoma, 222, 236, 280. 



Calaperostoma, 159, 164, 281, 287. 



Cyclotus, 236. 



Poteria, 236. 

 pizarroi, Aperostoma, 187, 193, 194, 195, 



282, 288. 

 plana, Poteria, 107, 113, 114, 286. 

 Platyraphe, 220. 

 Platystoma, 82. 



dysoni, 208. 

 Plectocyclotus, 106. 

 poeyi, Farcimen, 17, 18, 19, 283. 

 ponderosum, Cyclostoma, 182, 276. 

 ponderosus, Amphicyclotus, 182. 



Cyclophorus, 182. 



Megacyclotus, 182, 183, 281, 288. 

 popayana, Cyclostoma, 264. 



Poteria, 256, 264. 

 popayanum, Aperostoma, 223, 264, 266, 



280, 291. 

 popayanus, Cyclotus, 264. 



Neocyclotus, 264. 

 portlandensis, Cyclotus, 93, 94. 

 portobelleuse, Aperostoma, 222, 242, 281, 



290. 

 portoricensis, Amphicyclotulus, 54, 59, 

 285. 



Cyclotus, 59. 

 Poteria, 62, 82, 105, 106. 



affiuis, 210. 



ambiguus, 211. 



aulari, 199. 



balnearis, 116, 123, 286. 



bartletti, 157. 



bejumensis, 270. 



berendti, 212. 



blanchetianum, 245. 



bogotensis, 226. 



bondi, 68. 



burringtoui, 107, 286. 



campeacliyi. 104. 



cardozi, 266. 



caribaea, 77. 



caucaensis, 2.58. 



caymanensis, 80. 



chittyi, 116, 121, 286. 



cingulatum, 228. 



colombiensis, 25S. 



confusum, 237. 



corpulentus, 217. 



corrugatissima, 107, 110, 111, 112, 

 114, 286. 



crassa, 107, 113, 2S6. 



cycloata, 109, 110, 286. 



dentistigmata. 116, 120, 287, 291. 



depressus, 247. 



dunkeri, 230, 256. 



dysoni, 208. 



fasciata, 256. 



Poteria filo-liratus, 267. 



fischeri, 239. 



gigantea, 238. 



glaucostoma, 200. 



granulatus, 196. 



imitator, 107, 108, 286- 



inca, 267. 



incomptus, 192. 



inconspicuum, 227. 



inutilis, 115. 



irregulare, 236. 



jamaicensis, 106, 107, 112, 286. 



laevite.sta, 82. 



laxatum, 244. 



lineata, 106, 107, 109, 110, 115, 286, 

 291. 



magister, 116, 119, 287. 



major, 270. 



minor, 213. 



nana, 116, 120, 286. 



no(lo.sa, 114. 



notata, 114. 



notatior, 116, 122, 123, 286. 



uovaespei, 115, 116, 117, 2S6. 



pallescens, 107, 111, 286. 



panamensis, 197. 



pazi, 257. 



perezi, 259. 



pergrandis, 188. 



peruvianus, 252. 



pittieri, 236. 



plana, 107, 113, 114, 286. 



popayana, 256, 264. 



quitensis, -!50. 



rugata, 202. 



sanctaemarthae, 218. 



santaguitensis, 272, 273. 



smithi, 216. 



stramineus, 198. 



subcingulatum, 249. 



taylori, 118, 119, 287. 



trauslucida, 272. 



trinitensis, 136, 271. 



tryoniana, 116, 286. 



vincentiana, 133. 



welchi, 116, 118, 119, 286 



yallabsensis, 116, 123, 287. 

 pretiosum, Aperostoma, 126, 127, 287. 

 pretiosus, Cyclotus, 127. 

 princeps, Aperostoma, 175. 



Barbacyclus, 175, 280, 288. 

 procer, Farcimen, 38, 284. 



Megalomastoma, 38. 

 prominula, Cyclostoma, 277. 

 promiuulus, Incerticyclus, 277, 279, 291. 

 pseudotortum, Farcimen, 5, 6, 7, 26, 283. 

 psilomitum, Cyclostoma, 274. 

 psilomitus, Amphicyclotus, 274. 



Cyclophorus, 274. 



Liracyclotus, 274, 2.S2, 287. 

 Pterocyelos, 161. 



incomptus, 192. 

 Ptychocochlis, 62, 82. 



adarasi, 83, 94, 95, 286. 



campeachyi, 84, 103, 104, 286. 



clappi, 82, 83, 91, 286. 



corrugata, 82, 83, 93, 95, 286. 



