ARNOLD — THE PALEONTOLOGY AND STRATIGRAPHY OF SAN PEDRO. 83 



MOLLUSCA (Continued). 



Genus Caecam Fleming 297 



324. californicum Dam 297 



325. crebrieiuctnm Carpknter 298 



326. mnguum Stearns 298 



Family LXXI. VermctUlit 299 



Genus Serpulorbis Sassi 299 



327. squamigerus Cari'Entku 299 



Subgenus Vermioularia Lamarck 299 



328. (V.) sp. indet 299 



Genus Spiroglyphus Daudin 299 



329. lituella Morch 299 



Family LXXII. Tarritatlidce 300 



Genua Turritella Lamarck 300 



330. cooperi Carpenter 300 



33L jewettii Carpenter 300 



Family LXXI II. Litlorinidan 301 



Genus Littoriua Ferussac 301 



332. planaxis (Nottall) Philippi 301 



333. scutulata Gould 302 



Genus Lacuna Turton 302 



334. compacta Carpenter 302 



335. porrecta Carpenter 303 



336. solidula (Loven) Carpenter 303 



Family LXXI T. Fo.isaridce 304 



Genus Fossarus Philippi 304 



Subgenus Isapis H. «fe A. Ada.ms 304 



337. (I.) fenestrata Carpenter 304 



Family LXX V. Jiissoid(t 304 



Genus Rissoa Preminvillb 304 



3.38. acutelirata Carpenter 305 



Suhfumily Hydrobiin(s 305 



Genus Paludestiiua d'Oruignt 305 



339. curta, sp. nov 305 



340. stokesi, sp. nov 305 



Family LXX VI. Calyplrmdce 306 



Genus Crucibulum Schumacher 306 



Section Crucibulum s. s 306 



341. (C.) spinosum Sowerby 306 



Genus Galerus Humphrey 307 



342. mammillaris Broderip 307 



Genus Creijidula Lamakck 307 



343. aculeata Gmelin 308 



344. adunca Sowerby 308 



345. dorsata Bkoderip 309 



346. grandis Miodendorff 309 



347. navicelloides Nuttall 310 



348. onyx Sowerby 310 



349. rugosa NnTT.\LL 311 



Family LXX VII. Amallheidce 311 



Genus Hippouyx De France 311 



350. autiquatus Linn 312 



351. cranioides Carpenter 312 



352. tumens Carpenter 313 



Family LXX VIII. Naticida: 313 



Genus Natica (Adanson) Scopoli 313 



Subgenus Cryptonatica Dall 313 



353. (C.) olausa Broherip & Sowerby 313 



Genus Polynices Montfort 314 



Subgenus Neverita Risso 314 



354. (N.) lecluziana Petit 314 



