Index 



Nassidae, 174. 

 Natica, genus, 166. 

 recluziana, 167, 169. 

 aha, 167. 

 andersoni, 168. 

 imperforata, 168. 

 inezana, 169. 

 ocoyana, 169. 



(Ampullina) gabbi, 166; plate show- 

 ing, opp. 224. 

 (Euspira) ramonensis, 166; plate 



showing, opp. 224. 

 (Neverita) recluziana, 167, 169. 

 andersoni, 168, 169; plate show- 

 ing, opp. 226. 

 ?Natica inezana, 168. 

 Naticidae, 166. 

 Natrolite, 278. 



Neohipparion, 452, 532, 561, 570. 



near molle, comparative measure- 

 ments, 556. 



occjdentale, 556. 



whitneyi, 570, 573. 

 Neotragoeerus, 532. 

 Neptunite, 278. 

 Neverita callosa, 168. 



recluziana, 167. 

 Newberry, J. S., quoted, 346. 

 Nomland, J. O., cited, 8. 

 Novaculites, 333, 364, 406. 

 Nucula, genus, 122. 



bifida, 122; plate showing, opp. 210. 



dalli, 121. 



postangulata, 122; plate showing, 

 opp. 212. 

 Nucula (Acila) decisa, 121. 



(Acila) gettysburgensis, 119. 



shumardi, 121. 

 Nuculidae, 119. 



Nutter, E. H., and Barber, W. B., 



cited, 27. 

 Nyctilochidae, 173. 

 Ocean basins, doctrine of permanence 



of, 360-361. 

 Oligoeene fauna of the West Coast, 



54-56; literature pertaining to, 



57-72. 

 Olivella, genus, 185. 



quadriplicata, 185; plate showing, 



opp. 224. 

 Olividae, 185. 

 Ophiuroidea, 193. 

 Oreodontidae, 507, 575. 

 Orinda formation, areal map of, opp. 



78. 



Ostrea, genus, 130. 



sp. indet., 130. 

 Ostreidae, 130. 



Pacheco syncline, San Lorenzo series 

 in, 81; lithology of, 81. 



Pandora, genus, 138. 



(Pandora) acutirostrata, 138; plate 

 showing, opp. 208. 

 Pandoridae, 138. 

 Panope, genus, 161. 

 estrellana, 161. 

 cf. estrellana, 161. 

 generosa, 161, 162, 287. 

 Paphia, 270. 

 staminea, 270. 

 var. orbella, 271. 

 var. petiti, 272. 

 var. ruderata, 271. 

 tenerrima, 272. 

 Parahippus ? mourningi, 475, 479; fig- 

 ures of, 476. 

 Pavlow, A. P., cited, 14. 

 Pecten, genus, 131. 

 fucanus, 132. 

 pcckhami, 132, 133, 178. 

 perrini, 131. 

 vancouverensis, 132. 

 (Chlamys?) gabbi, plate showing, 



opp. 216. 

 (Lyropeeten) gabbi, 131. 

 (Pseudomuseum) alternilineatus, 

 132; plate showing, opp. 212. 

 Pectinidae, 131. 

 Pectuncidu.s patidus, 138. 

 Pedicularia, 329. 



californica, 329. 

 Pelecypoda, 119. 

 Periploma, 136. 

 argentaria, 136. 



undulata, 136; plate showing, opp. 

 216. 



Periplomidae, 136. 

 Perissolax blakei, 180. 

 Perse, genus, 179. 



corrugatum, 179, 180; plate show- 

 ing, opp. 232. 

 Phacoides, 138. 



acutilineatus, 138, 139. 



cf. acutilineatus, 138. 



annulatus, 138. 

 Philippine Islands, 15, 244, 332, 372. 

 Pholadidae, 162. 

 Pholadidea, genus, 162. 



penita, 162. 



aff. penita, 162. 

 Phylum Echinodermata, 192. 

 Pierce, G. W., and Morse, H. W., cited, 

 398. 



Pillow lavas, 385, 403, 404. 

 Pinole Tuff, areal map of, opp. 78. 

 Pitaria, genus, 147. 

 dalli, 147. 



lorenzana, 147, 148; plate showing, 

 opp. 206. 



Pitaria? sp., 148; plate showing, opp. 

 214. 



Pittman, E. F., and David, T. W. E., 

 cited, 397. 



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