AKNOLD — THE PALEONTOLOGY AND STEATIGKAPHY OF SAN PEDRO. 81 



MOLLUSCA (Continued). 



2G4. luridd MiDi)., var. caiicellina Philippi 257 



265. lurida Miud., var. cerritonsis, var. noT 258 



266. lurida Midd., var. munda Carpentkk 258 



267. micheli FoRu 259 



268. perita Hinds 259 



269. poulsoni Nuttali 260 



Suhfamily PtirpttrincE 260 



Geuiis Purpura Bruguikre 260 



270. crispata Chemnitz 261 



271. saxicola Valenciennes 261 



Subfamily CoralliophUinti' 262 



Genus Coralliophila H. & A. Adams 262 



272. nux.BEEVE 262 



Sdbokder Streptodonta 262 



SUPERFAMILY PTENOQLOSSA 262 



Family LXII. Scalida; 262 



Genus Scala Humphrey 262 



273. bellastriata Carpenter 26.3 



274. crebricostata Carpenter 263 



275. hemphilli Dall 264 



276. hiudsii Carpenter 264 



277. iudiauorum Carpenter 264 



278. tiucta Carpenter 265 



Geuus Opalia H. & A. Adams 266 



[S. D.] auomala Stearns 266 



279. borealis Gould 266 



280. creuatoides Carpenter, var. insculpta Carpenter 267 



[S. D.] varicostata Stearns 267 



SUPERFAMILY GYMNOGLOSSA 268 



Family LXII I. Eulimida; 268 



Geuus Eulima Kisso 268 



281. falcata Carpenter 268 



282. hastata Sowerby 268 



283. micaus Carpenter 269 



Family LXI V. Pyramiddlidie 269 



Genus Turbouilla Ri.s.so 269 



Section Strioturbouilla Sacco 270 



284. (S.) muricata Carpenter 270 



285. (S.) similis C. B. Adams 270 



286. (S.) stearnsii Dali, & BART.srH, sp. uov., 271 



287. (S.) torquata Goui.u 271 



288. (S.) torquata var. stylina Carpenter 272 



Section Lancea Pea.se 272 



289. (L.) aurantia Carpenter 272 



290. (L.) tridentata Carpenter 273 



291. (L.) peutalopha Dall & Bartsph, sp. nov 274 



Section Pyrgiscus Philippi 274 



[S. D.] (P.) auricoma Dall & Bartsch, sp. nov 274 



292. (P.) latifuudia Dall & Bartsch, sp. nov 275 



293. (P.) teuuicula Gould 275 



294. (P.) crebritilata Carpenter 276 



295. (P.) subcuspidata Carpenter 277 



Section Pyrgisculus Monteros.\to 277 



296. (P.) lamiuata Carpe.nter 277 



Section Pyrgolampros Sacco 278 



297. (P.) lowei Dall & Bartsch, sp. nov 278 



[S. D.] (P.) lowei var. pedroana Dall & Bartsch, var. nov. . 279 



298. (P.) arnoldi Dall k Bartsch, sp. nov 279 



299. (P.) gibbosa Carpenter 279 



( 11 ) June 16, 1903. 



