INDEX. 



293 



Page. 



OLEXELLUS 28 



nsaphoides 36,37,38,39 



Gilbeiti 2, 29, 34, 36, 37, 38 



Howelli 2, 3O, 31, 32, 33, 34, 35, 37, 38, 39 



Iddiugsi 28,30,37,38 



Thompson! 38 



Vermontana 34,38 



OI.EXUS (Olenellns) Gilbert! 29 



(Olenellus) Howelli 30 



ORBICULA Lodensis 112 



nnnuta 112 



nitida 213 



ORTHIS....! .22,72,114 



Eurekensis 22 



ftssicosta 73 



Hamlmrgensis 3, 73 



iuip r essa 4, 115, 169 



uu-qualis 117 



insignis 116 



lovrensis 115 



Lonensis 74 



McFarlanei 114,115 



occidentalis 74 



Pecosi 279 



perversa 117 



perveta 4,72,79 



plicatella 73 



Pogonipensis 270 



IIV;;YUS 117 



rosupinata 3, 279 



testudinaria 1, 4, 72, 73, 78 



triofiiaria 4, 74, 78, 79 



Tullicnsis 4, 115 



sp.? 268,273 



ORTHISIXA arctostriata 117 



altemata 117 



ORTHOCERAS 200,260,265 



annulato-costatum 



Bcbryx 



bonuiu 



cliuocameratam 



Eurekensis 



exile ... 



multicameratum. . . 



Randolphensis 



Tboas 



265 



201 



87 



266 



265 



201 



86 



265 i 



201 



.86,87,266,273 



OliTHOCKRATA 



ORTHO.XOTA ventricosa 



PACHYPHYLLUM "Woodmani 



P ALJEOMAXON 



cratera 



177 

 105 



PAL^OMANON Continued. 



Romeri 



PARACYCLAS , 



dliptica var. occidentalis 



Page. 



99 



178 

 178 



occidentalis 164,165,178 



peroccidens 277 



PARADOXIDES 39 



Kj erulfl . .-. 39 



PECTER? pnsillus 231 



PENTAMERUS 159 



biplicatus .162 



comis 159,102 



galeatiforni 159 



galeatus 114, 161 



Lotis 161, 1C2 



occidentalis 159,160 



snbglobosus 162 



PHACOVS - 207 



bombifrons 207 



rana 5,207,211 



PHAXEKOTIXUS paradoxus 186 



PHILUPSIA 211 



coronata 211 



Lodensis 267 



(Brachyinetopus ?) ornata 211 



(Grifflthidcs) Portlocki 266 



PHOLIDOPS 113 



bcllula 113 



Hamiltonaj '. 11 3 



ovalis 113 



quadraugnlaris 114 



PHYSA 202 



prisca - 262,263 



PINNA - 235 



consimiiis 236 



flexicostata 236 



inexpectans 235 



Ludlovi 225 



Missouriensis 236 



peracuta? 225 



spatula 236 



subspatula 236 



PLATYCE RAS 182, 254 



acutirostris 255 



carinatum 182,184,195,254 



conicum 182 



Conradi 182, 184 



dtntalium 182,195 



dumosum 183 



dumosam Tar. rarispinnm 183 



Newberryi 184 



nodosum.. 182,183 



