ARNOLD — THE PALEONTOLOGY AND STKATIGRAPHY OF SAN PEDKO. 81 



MOLLUSCA (Continued). 



264. lurida Midd., var. cancellina Philippi 257 



265. lurida Midd., var. cerritensis, rar. dot 258 



266. lurida Midd., var. munda Carpenter 258 



267. micheli Ford 259 



268. perita Hinds 259 



269. poulsoui NnxTALL 260 



Subfamily Purpurinm 260 



Genus Purpura Beuguiere 260 



270. crispata Chemnitz 261 



271. saxicola Valenoienne.s 261 



Subfamily Coralliophilince 262 



Genus Coralliophila H. & A. Adams 262 



272. nux Reeve 262 



Suborder Streptodonta 262 



SUPERFAMILY PTENOOLOSSA 262 



, Family LXII. SeaUdce 262 



Genus Scala Humphrey 262 



273. bellastriata Carpenter 263 



274. erebricostata Carpenter 263 



275. hemphilli Dall 264 



276. hindsii Carpenter 264 



277. indianorum Carpenter 264 



278. tincta Carpenter 265 



Genus Opalia H. & A. Adams 266 



[S. D.] anomala Stearns 266 



279. borealis Gould 266 



280. crenatoides Carpenter, var. insculpta Carpenter. .. . 267 

 [S. D.] varicostata Stearns .' 267 



SUPERFAMILY GYMNOGLOSSA 268 



Family LXI 1 1. Eulimidte 268 



Genus Eulima Eisso 268 



281 . falcata Carpenter 268 



282. hastata Sowbrbt 268 



283. micans Carpenter 269 



Family LXI V. Pyramidellidm 269 



Genus Turbonilla Risso 269 



Section Strioturbonilla Sacco 270 



284. (S.) muricata Carpenter 270 



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



286. (S.) stearnsii Dall & Bartsch, sp. uov 271 



287. (S.) torquata Gould 271 



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



Section Lanoea Pease 272 



289. (L.) aurautia Carpenter 272 



290. (L.) tridentata Carpenter 273 



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



Section Pyigiscus Philippi 274 



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



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



293. (P.) teuuicula Gould 275 



294. (P.) crebriHlata Carpenter 276 



295. (P. ) subcuspidata Carpenter 277 



Section Pyrgisoulus Monterosato 277 



296. (P.) laniinata Carpenter 277 



Section Pyrgolampros Sacco 278 



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



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



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



299. (P.) gibbosa Carpenter 279 



( 11 ) June 16, 1903. 



