43^ 



CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



macconnelli 355 



Posidonomya 403, 404 



Primordiales ... 107 



Primordialidae 108, 140 



Prionoceras . . 107, 108, 109, 118, 119, 121 

 122, 133 



belvalianum 118 



divisum 118 



Prionolobus 336, 352, 369, 370 



gracilitatis 371 



mushbachanus . . 376 



sp. nov 351 



Proclydonautilus 401 



triadicus 361, 392, 394, 401-2 



Productus cora 113 



semireticulatus 113 



Prolecanites 107 



Prolecanitidse . . . 106, 108, 132, 135, 136 

 141, 146, 147, 150, 384 



Pronannites 201, 213, 214 



Pronorites . 106, 107, 132, 193 



cyclolobus 113 



Proptychites .... 335, 336, 352, 366, 368 



sp. nov 351 



Prosphiugites 333, 335, 336, 352 



sp. nov 351 



Protozoa 182 



Protrachyceras ... . 339, 353, 360, 366 

 387-88, 389, 390, 391 



americanum 354, 385, 390 



archelaus 331 



homfrayi 362 



cf. homfrayi 360 



subasperum 354 



Protrachycerata 339 



Pseudomonotis . . . 332, 358, 362, 365, 365 

 406 



ochotica 343, 406, 407 



var. densistriata 407 



subcircularis . . 343, 353, 358, 363, 364 

 367, 407-8 



cf. subcircularis 365 



Pseudomonotis s. str. . 406 



Pseudosageceras . . 333, 335, 337, 345, 350 

 352, 366, 377 



sp. nov 351, 372, 375 



Psiloceras 129, 197, 199, 200 



Pterinopecteu 192 



Ptychites . . . .331, 332, 333, 338, 339, 351 

 354, 357, 366 



?perplanus 354, 355, 356 



rugifer 338 



sp. nov 354, 357 



Ptychitidse HI, 354, 357, 361, 379 



Pulchellia 189, 196 



Pulchellidse 189 



PuUenia 252 



Pullenia tuultilobata 253 



quinqueloba 253 



sphseroides 252 



Pulvinulina hanerii 253 



Radiolaria 46, 47, 48, 51 



Reifiingites 387 



Rhabdoceras 343, 358, 359 



russelli 364, 367 



Rhacophyllites 146 



tortisulcatus 146 



Rhombopteria 192 



Rhynchonella sp. nov 362 



Rotalia 255 



orbicularis 255 



Rotaliidse 253 



Rotaliinse 253 



Sageceras 353, 366 



gabbi 354, 356, 385, 390, 406 



Sagenites 360, 366, 399 



erinaceus 361, 399, 400 



herbichi 361, 394, 399-401 



inermes 399 



reticulati 399 



spinosi 399 



Sagenites s. str 399 



Saudlingites sp. nov 361 



Santa Catalina island, The geology 



of 1-71 



Saxidomus 176 



Scaphites • 136 



Schizaster 164, 165 



lecontei 152, 164-65 



Schloenbachia 139, 187 



chicoensis 204 



inflata • . 195 



Scutella 162, 153, 154, 158 



excentrica 170 



gabbi 162, 163, 165, 168 



gibbsi 159 



interliueata 163, 165, 168-69 



Scutellinse 152, 153 



Serpula sulcata 246 



Shastasaurus alexandrse 362 



altispinus 362 



careyi 362 



osmonti 362 



pacificus 362 



perrini 362 



Sibirites 331, 336 



? sp. nov 351 



Sibiritidse 350 



Simplices 107 



Siuum cf. scopulosum 177 



Sirenites sp. nov 361 



Smith, J. P., The comparative stratig- 

 raphy of the marine Trias of 

 western America 323-430; The de- 

 velopment and phylogeny of Pla- 

 centiceras 181-240; The develop- 

 ment of Glyphioceras and the 

 phylogeny of the Glyphiocerati- 

 dse 105-28; The development of 

 Lytoceras and Phylloceras. . . 129-60 



