420 



CALIFORNIA ACADEMY OF SCIENCES. 



Turbonilla gibbosa 19, 46 



(Pyrgolampros) gibbosa 279 



lamiuata 19, 22, 28, 31, 46, 55 



(Pyrgisculus) laminata 277 



latifundia 46 



(Pyrgiscus) latifundia 275 



lowei 19, 22, 28, 31, 46, 279 



(Pyrgolampros) lowei 278 

 var. pedroana 279 



mexicana 280 



muricata 19, 22, 46 



(Strioturbouilla) muricata 270 



pentalopha 19, 46 



(Lancea) pentalopha 274 



plicaiula 269 



plicatulus 269 



similis 19, 22, 31, 46 



(Strioturbouilla) similis 270 



stearnsii 22, 23, 28, 31, 46, 270, 271 



(Strioturbouilla) stearnsii 271 



subcuspidata 19, 22, 28, 31, 46 



(Pyrgiscus) subcuspidata 277 



tenuicula 19, 22, 28, 31, 46, 276 



(Pyrgiscus) tenuicula 275, 276 



torquata 19, 46, 272 



var. stylina 19, 22, 46, 271 



(Strioturbouilla) torquata 271 

 var. stylina 272 



tridentata 19, 22, 31, 46, .52, 273 



(Lancea) trideutata 273 



typica 269 

 Turcka (Ptychslylia) cnffra 327 

 Turckula chlaris 3.34 

 Turritella 83, 300 



apicalis 300 



cooperi 15, 17, 19, 22, 24, 25, 28, 31, .32, 46, 54, 

 55, 56, 57, 64, 83, .300, 301 



jewettii 15, 19, 24, 25, 28, 46, 83, 300, 301 



sanguinea .300, 301 



terebra 300 

 Turritellid* 83, 300 



Urolophus 85, 346 



hallori 28, 47, 85, .346 

 Urosalpinx cnncellinus 257 



Veneracea 74, 142 

 Veuericardia 74, 128 



barbarensis 15, 17, 18, 25, 27, 32, ,38, 52, 74, 128 



borealis 57 



var. vriifricoKa 128 



planicostata 128 



ventricosa 15, 17, 18, 38, 52, 56, 57, 64, 128 

 VeueridiB 74, 142, 147 

 Venerinas 74, 142 

 Venerupis cordieri 155 

 Venus 75, 146 



bisecla 135 



brevilincata 149 



californie.a 149 



cnllosa 145 



Venus corlizi 147 



iluctifraga 27, 147 



(Chione) fluctifraga 38, 147 



gibbosnla 147 



gnidia 27, 67, 147 



(Chioue) guidia 38, 147 



kenncrleyi 146 



lamellifera 149, 150, 155 



lapicida 154 



m axima 1 5 1 



neglecta 27, 31, 148 



(Chione) neglecta .38, 148 



nutlalli 149 



perlaminosa 51, 52, 75, 146 



rigida 150, 151 



rysonia 153 



securis 149 



simillima 15, 18, 23, 25, 27, 31, 148 



(Chione) simillima 38, 148 



slnminra 150 



succincta 23, 25, 27, 31, 149 



(Chione) succincta .38, 149 



tantiUus 1.53 



verrucosa 146 

 Vermetid* 83, 299 

 Vermeliis squamigerun 299 

 Vermicularia 19, 46, 83, 299 

 Vertebrata 85, 346 

 Verticordia 73, 126 



cardiiformis 126 



novemcostata 18, 38, 73, 126 



ornata 126 

 Verticordiidae 73, 126 

 Vitrinella 64, 85, 335 



anomala 335 



williamsoni 19, 28, 46, 85, 335 

 Vilularia axprra 257 

 Vola 57 



denlala 104 

 Volvarla alba 192 

 Volvarina 79, 222 



varia 19, 22, 24, 25, 28, 31, 4fi, 64, 79, 222 

 Volvula 77, 191 



acuminator 191 



cylindrica 19, 46, 64, 77, 191 



YoLDiA 72, 99 



amygdala 100 



arctica 99 



cooperi 27, 38, 55, 64, 72, 99, 100 



impressa 99 



myalis 99 



scissurata 18, 38, 72, 99, 100 



ZlRPnasA 77, 183 



crispnla 56, 184 



gabbii 2.3, 25, 27, 31, .32, 38, 56, 77, 184 

 Zizyphinun annulnlus 329 



canaliculnlus 329 



/Jto.sH.v 330 

 Zygobranchia 85, 336 



