INDEX OF GENERA AND SPECIES. 



315 



Page. 



Pterocerella tippana 48 



Pterocephalus 190, 234 



Pteroph jihini robustum 346 



fragile ii46 



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



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



Pt»rot«crinu8 44 



cheatereusis 44 



crassua 44 



PtiJcx^ict ya 78, 80, 90, 144, 147, 151, 163 



(Stictopora) carbonaria 67, 90 



gilbert! 66,80 



sereata 90 



shafferi 68,78 



triamgnlata 144,147, 151, 163 



Ptycbaspis 186, 190, 234 



minuta 190 



pusulosa 334 



speciosus 186 



Ptychoceras 104, 265 



crassum 361 , 265 



leai 49 



meekanniD 361,265 



mortoni 17, 104 



vernenilii 49 



PtychoceratidiE 104 



Ptychodus whipplei 343, 246 



Ptychoparia 129. 190, 191, 198, 199 



? annectans 191 



anytus 190 



(Enloma ?) affinis 190 



disaimilis 190 



granulosus 190 



haguei 1 90 



SiEviceps 190 



Ilinnarssoni 190 



mitidus 190 



occidentalis 190 



orestes 199 



var. thersites 199 



onangondiaua 198 



var. anrora 199 



oweni 190 



pernasutua 190 



prospectensis 190 



(Pterocephaliis) laticeps 190 



occidens 190 



quadrata 199 



Tobbi 198 



regersi 199 



similis 190 



var. robust us 190 



(Solenopleura ?) breviceps 190 



tener 199 



unisulcatu.s 190 



Ptychophyllum 108 



? infundibulnm lOS 



Ptycbopteria 196 



protofonne 196 



Pulmonaria 61 



PuliiiouaU 102, 1 05, 107 



Pulnionifera 34, 13.5, 197 



? 264 



P.siloraya 101, 127 



Pupa 137,159 



l*agS. 



Pupaarenula 137,159,170 



atavuncula 159,170 



bigsbyi 167 ' 



helicoidea 16 



iiicolata 137,170 



?leidyl 77 



(Leucocheila) incolata 150 



vevniilliouenais 167 



vetnsta ■- ^■■•^ l6i 



Purpura 212 



Pyramia 225 



Pyramidelllda} 103,134 



Pyi-amimitracostata 221 



Pyramua 334 



ellipticua 334 



myiformi a 334 



Pyrgorhynchua mortoui.s 222 



Pyrgulifera 70, 95,162 



humerosa 95, 112, 102, 168 



PyrifusHS 103 



f flexicostatus 49 



? haleanus 49 



? impressua 49 



intertextus 49 



(Neptunella) intertextas 103 



newberryi 103 



aubturritea 103 



newberryi 40 



subturrites 49 



Pyrina parryi 333 



Pyropais 103 



bairdi 103 



v.ar. rotula 103 



Pyrula bairdi 14,16,49 



glabra 356 



modesta 50 



Q- 

 Quadrula 105 



K. 



Radiata . . .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, 1.54, 165, 226, 227, 235, 236, 260, 261. 



Radix 105 



Radula 266 



acutilineata 266 



pelagica 266 



reticulata 266 



Raphiatowa 55,108,130,191,234 



acuta 334 



lenticularis 55 



nasoni 191 



? rotulifonnia 108 



? trochiscus 108, 130 



Receptaculites 55, 91, 129, 190 



? .....55,129 



6Uipticu8 190 



elongatua 190 



fonnosua 64, 91 



globularis 55 



mammUlaria ' 190 



oweni 55 



Re mopleii rides 185 



striatulus 1 85 



