Index 



Nassidae, 174. 

 Natica, genus, 166. 

 recluziana, 167, 169. 

 alta, 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. 



oecidentale, 556. 



whitneyi, 570, 573. 

 Neotragocerus, 532. 

 Neptunite, 278. 

 Neverita eallosa, 168. 



recluziana, 167. 

 Newberry, J. S., quoted, 346. 

 Nomland, J. O., cited, 8. 

 Novaculites, 333, 364, 406. 

 Nueula, genus, 122. 



bifida, 122; plate showing, opp. 210. 



dalli, 121. 



postangulata, 122; plate showing, 

 opp. 212. 

 Nucida (Acila) decisa, 121. 



(Acila) gettysburgensis, 119. 



shumardi, 121. 

 Nuculidae, 119. 



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



cited, 27. 

 Nyetilochidae, 173. 

 Ocean basins, doctrine of permanence 



of, 360-361. 

 Oligocene 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. 

 esirellana, 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. E., cited, 14. 

 Pecten, genus, 131. 

 fucanus, 132. 

 pecJchami, 132, 133, 178. 

 perrini, 131. 

 vancouverensis, 132. 

 (Chlamys?) gabbi, plate showing, 



opp. 216. 

 (Lyropecten) gabbi, 131. 

 (Pseudomuseum) alternilineatus, 

 132; plate showing, opp. 212. 

 Pectinidae, 131. 

 Pectunculus patulus, 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, ISO; 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 Eehinodermata, 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. 



[593] 



