INDEX OF GENERA AND SPECIES. 



315 



Page. 



Pterocerella tippana 48 



IPteroceplialus 190, 234 



Pterophyllum robustiim 346 



fragile 246 



Pteropoda 28, 31, 39, 56, 67, 84, 89, 118, 126, 138, 



149, 151, 165, 189, 191, 195, 198 



rteiotocrinua 44 



chesterensis 44 



crassus 44 



Ptilodictya 78, 80, 90, 144, 147, 151, 163 



(Stictopora) carbonaria 67, 90 



gllberti 66,80 



sereata 90 



shafferi 68,78 



triangulata 144,147, 151,162 



Ptychaspis 186, 190, 234 



minuta , 190 



pusulosa 334 



speciosus 1S6 



Plycltoceras 104, 265 



crassum 361, 265 



leai 49 



meekamun 361, 265 



niortoni 17, 104 



verneuilii 49 



PtychoceratidsE 104 



Ptychodus whipplei 343, 246 



Ptychopaiia 129, 190, 191, 198, 199 



? aonectans 191 



arijrtus 190 



(fBiiloma ?) affinis 190 



dissimilis 190 



granulosus 1 90 



haguci 1 90 



l<evicep8 190 



linnarssoni 190 



nitidns 190 



' occidentalis 190 



orestes 199 



var. thersites 199 



onangondiaua 198 



var. aurora 199 



oweni 190 



pernasutus 190 



prospectensis J 90 



(Pterocephalus) laticeps 190 



occidens 190 



quadrata 199 



robbi 198 



regersi J 99 



simiUs 190 



var. robu.stus 190 



(Solenopleura ?) breviceps 190 



tener 199 



UDisulcatus 190 



Ptyehophylluni 108 



? iufiiudibulnm lOS 



Ptycbopteria 196 



protoforme 196 



Pulmonaria 61 



Puluionata 102, 105, 107 



Pulraonifera 34, 135, 197 



? 264 



Psilomya 101, 127 



Pupa 137,159 



Page. 



Pupa arenula 137, 159, 170 



atavuncula 1 59, 1 70 



bigsby 1 167 



helicoidcs 16 



incolata 137,170 



?leidyi 77 



(Leucocheila) incolata 150 



vevmillionensis 167 



vetusta 16? 



Purpura 212 



Pyramia 225 



Pyraniidellidsc 103, 134 



Pyraniimitracostata 221 



Py ramus 334 



cUipticus 334 



myiformi s 334 



Pyrgorhynchus niortonia 222 



Pyrgulifera 70, 95,162 



hnmerosa 95,112,102,168 



Pyrifusus 103 



? flexicostatus 49 



? haleanus 49 



? iinpressus 49 



intertextus 49 



(Neptuuelia) intertextus 103 



newberryi 103 



subturrites 103 



newberryi 49 



subturrites 49 



Pyrina parry i 333 



Pyrop.sis 103 



bairdi 103 



var. ro tula 103 



Pyrula bairdi 14, 16, 49 



glabra 356 



modesta 50 



Q- 



Quadnila 105 



K. 



Kadiata . -.33, 37, 40, 41, 42, 43, 44, 45, 54, 55, 56, 57, 

 58,60,68, 71, 77, 85, 94, 96, 108, 109, 117, 133, 136, 

 138, 142, 144, 154, 165, 226, 227, 235, 236, 260, 261. 



Radix 105 



Eadula 266 



acutilineata 266 



pelagica 266 



reticulata 266 



Kapbistonia 55, 108, 130, 191 , 234 



acuta 334 



lenticularis 55 



nasoni 191 



1 rotuliformis 108 



?trochiscu8 108,130 



Keceptaculites 55,91,129,190 



1. 55,129 



6Uipticn8 190 



elongatus . ! 190 



fonnosus 64, 91 



globularis 55 



uiamniillaris 190 



oweni 55 



Kciuopleurides 1^5 



striatulus 185 



