ARNOLD— THE PALEONTOLOGY AND STRATIGRAPHY OF SAN PEDRO. 



417 



Purpura persica 260 



saxicola 28, +4, 55, 80, 247, 261 

 PurpurinaB 81, 260 

 Pyramidella 82, 280 



couica var. variegata 28, 44, 82, 280 



plicata 280 

 Pyramidellid* 81, 269 

 Pyrgisculus 81, 277 



lamiuata 81, 277 

 Pyrgiscus 81, 274 



auricoma 81, 274 



crebrifilata 81, 276 



latifundia 81, 275 



subcuspidata 81, 277 



tenuicula 81, 275, 276 

 Pyrgolampros 81, 278 



adleri 81, 280 



arnoldi 82, 279 



gibbosa 81, 279 



lowei 81, 278 



var. pedroana 81, 279 



mioperplicatulus 278 

 Pyrgostelis 274 

 Pyrgostylus 272 



Kaeta 76, 177 



ttndulaia 18, 37, 57, 76, 174, 177 

 Ranella 82, 287 



calif ornica 24, 25, 28, 31, 44, 63, 82, 287 



mtiriciformis 248 



plicata 248 



spiuosa 287 



triquetra 248 

 Hexilhcerus secta Tar. cduli.i 164 

 Rictaxis 77, 188 



punctocalata 77, 188, 189 

 Rimula cucullata 341 



galcata 341 

 Ringicardium 74, 139 



procerum 74, 139 

 Rissoa 83, 304 



acutelirata 28, 44, 55, 83, 305 



costulata 304 

 Rissoidse 83, 304 

 RowMia 197 



radiata 197 

 Rupellaria 75, 155 



lamellifera 23, 37, 75, 155 

 Sanguinolaria 76, 168 



califoriiica 161 



nuttalli 27, 31, .37, 68, 168 



(Nuttallia) uuttalli 168 



sordida 161 

 SaxicavidiB 76, 182 

 Saxicava carditoides 154 

 Saxidomus 75, 151 



aratus 18, 23, 25, 27, 31, 33, 37, 48, 55, 63, 75, 

 151 



gracilis 151 



nuttallii 151 

 (63) 



Scala 81, 262 



bellastriata 28, 44, 81, 26.3, 264 



{Opalia) boreaUs 266 



crebricostata 22, 2.3, 24, 28, 44, 55, 63, 81, 263, 

 265 



hemphilli 28, 44, 81, 263, 264 



hindsii 19, 22, 24, 28, 31, 45, 81, 263, 264, 265 



indiauorum 15, 19, 22, 24, 25, 28, 31, 45, 81, 

 263, 264 



pretiosa 262 



tiucta 19, 22, 24, 25, 28, 31, 32, 45, 55, 63, 81, 

 263, 264, 265 

 Scalaria bellaslrhala 263 



borealis 266 



crebricostata 263 



hindsii 264 



indianorum 265 



var. tinctn 265 



stibcorotia/a 264 



tincia 265 

 Scalidaj 81, 262 

 Scaphaudridas 77, 192 



Scaphopoda 19, 22, 24, 25, 28, 31, 47, 77, 185 

 Schizopyga californiana 231 



calif ornica 231 

 Schizothcerus nuttalli 178 



scopali 75 



ponderosa 75 

 Scrobicularia biangulata 160 

 Scurria mitra 318 

 Scutella 71, 91 



excentrica 91 



(Echinarachiiius) exceutricus 91 



iuterliueata 16 



striatula 91 

 Scutellidas 71, 91 

 Sella 82, 290 



assimilata 19, 45, 82, 290 

 Selachii 85, 346 

 Semele 76, 165 



decisa 21, 23, 27, 31, 38, 63, 76, 165, 166 



pulchra 27, 31, 38, 63, 76, 166 



var. montereyi 18, 38, 76, 166 

 Semelidie 75, 165 

 Septifer 73, 119 



bifurcatus 18, 38, 119 



heberti 119 



lampe 73 

 Serpulorbis 83, 299 



arenaria 299 



squamigerus 19, 22, 24, 25, 28, 31, 32, 45, 63, 

 83, 299 



(Vermicularia) 299 

 Sigaretus 84, 316 



debilis 31, 45, 84, 316, 317 



neritoideus 316 

 Siliqua 76, 172 



calif ornica 173 



lucida 18, 21, 27, 31, 38, 63, 76, 172, 173 



nuttalli 173 



Jane 33, I9O3. 



