INDEX OF GENERA AND SPECIES. 



309 



Page. 



Pecteu nevadanus 313, 214 



newbtiryi 360, 262 



obrutus SOS 



occidentaJis 245, 274 



pabloensis 316 



plaDicostatus 366 



propatulus 49, 306 



quadricostatus 255 



quinquenarius 266 



rigbyi 341 



rigida 13,47 



sqnamulifenis (0 266 



(Syncyclonema ?) perlamoUosua 266 



tenuicoUis 334,226 



tenuilineatus - . . 34 



tennisciilns 334 



tenuitestus 266 



ntahensis 33 



vennstus 266 



Pectenidas 30,260,261,271 



Pectinibrancbiata 34, 102, 106, 132, 134, 135 



Pectinidae 32, 33, 97, 132, 133, 263 



Pectunculus 99,217 



ellipsis 220 



nitens 50, 306 



patulus 306 



siouxensis 13 



aubimbricatus 18 



Pectunculina paiTiila 15 



Pelagns vanuxemi 222 



Penitella 212,214 



speloea 214 



spelcenm 313 



Pennularia nobilis 203 



varidis 203 



Pentacrinidte 33,133,262 



Pentacrinitea 33, 94, 262 



asteriBCus 236,262 



Pentacrinua 133 



aatericus 18 



asterlscns 33, 133 



Pentadia 333,226 



corona 226 



reniformis 333 



spatangna 333 



trigonia 333 



Pentamerua 58, 62, 116, 193 



borealis 63 



comia 58, 193 



hnspodna 247 



lenticularis 116 



lotis 193 



oblongus 247 



aubglobosus 58 



PentinidsB 133 



Pentremites 26, 54, 83, 91, 118, 149, 249, 251 



burlingtonenais 64, 83 



conoidena 149 



cornntus 26 



florealis 255 



godoni 149 



(Granatocrinua) granuloaua .. 38 



laterniformis 349, 251 



melo 349,251 



var. projectus 36 



Page. 



Pentremites Horwoodii 340, 251 



pyriformia 149, 248 



siriua 118 



stellilbrmia 349, 251 



sulcatus 255 



(Tricoelocrinus) obliquatns .. 91 

 (Troostoci'inus?) woodmanii 54,83, 87 



woitheni 83 



Periploma claibornensis 220 



Periplomy a 269, 271 



elliptica 269 



trnncata 371 



PerischaechinideB 42, 43, 44, 60 



Porisaoptera 102 



Peron;ea 100 



Peronaeoderma 100 



Perna 29,32,217 



montana 50, 317 



torta 50 



Pernopecten 59 



ahumardianus 59 



Perisonota 268 



protexta 268 



Petalodus allegbaniensia 20 



Petraster 26 



wilberanus 36 



Petricola 211,213,271 



nova segyptica 371 



pedroana 311, 213 



Petricolidae 271 



Petrospongia 43 



Pbacopa 59,195 



ancbiops 232 



callicephalus 232 



rana 59,195 



PhacopsidiB 109 



Pharella 101,158 



dakotenais 101 



?pealei 76, 158 



Phasianella haleana 48 



perovata 48 



punctata 48 



Pbeuopora mnltipora 33 1 



Phillipsia 39, 74, 84, 87, 90, 149, 1 79, 1 90 



1 74, 253 



bufo 149 



coronata 196 



(Griffithides) bulo 65, 84 



lodiensis 90 



portlockii 39,84 



sangamonenaia 39, 87, 179 



scitula 39,87,179 



major 74 



perannulata 356, 257 



scitula 74 



stovensoni 69 



tuberculata 65 



Philocriius 36 



nebrascensis 36 



pelvis 36 



PholadidiB 101,270,272 



Pholadomya 29, 34, 35, 92, 100, 104, 205, 



207, 209, 218, 2C9 



(Cymella) undata 4H 



decisa 307 



