384 



INDEX 



Plastron (echinoids), 132 



Platyceras, 242 



Platychonia, 48 



Platycrinus, 140 



Platystrophia, 111 



Pleopod, 318 



Plesioteutliis, 286 



Pleura, 297 



Pleurocystis, 149 



Pleurodictyum, 99 



Pleurograptus, 68 



Pleuromya, 227 



Pleuronautilus, 287 



Pleuropygia, 170 



Pleurotoma, 247 



Pleurotomaria, 239 



Plicatula, 215 



Plocoscyphia, 40 



Plumaster, 112 



Plumularia, 55, 56, 63 



Plumulites = Turrilepas, 317 



Pneumatocyst, 65 



Podocrates, 332 



Podocyrtis, 29 



Pollicipes, 317 



Polychasta, 158 



Polyp, 51, 57, 70, 77, 79, 81 



Polypary, 56 



Polypide, 189 



Polyplacophora, 237 



Polypora, 195 



Polytremacis, 101 



Polyzoa, 188-195 



Porcellaneous Foraminifera, 16, 18, 



20-22 

 Pore-rhornbs, 148 

 Porifera, 31-49 

 Porites, 102 

 Porosphcera, 46 

 Posidonomya, 214 

 Post-abdomen, 352 

 Posterior canal, 235 

 Potamides, 244 

 Potamomya, 231 

 Poterioceras, 265 

 Poteriocrinas, 143 

 Prceanaspides, 323 

 Pre-abdomen, 352 

 Prearcturus, 325 

 Prestioicliia, 342 

 Primary plates, 119 

 ,, septum, 78, 84 



Primitia, 314 

 Priscochiton, 238 

 Prismatic layer, 168, 206 

 Proboscina, 195 

 Prodissoconch, 208 

 Productus, 175 

 Proetus, 310 

 Prographularia, 103 

 Prolecanites, 272 

 Pro-ostracum, 283 

 PropalcemoH, 332 

 Propora, 101 

 Proscorpias, 353 

 Prosobranchia, 233 

 Prosoma, 337, 339, 340, 343, 350 

 Prosopon, 332 

 Protaspis, 300 

 Protaster, 114 

 Protegulum, 170 

 Prothelyplionus, 354 

 Protocardia, 223 

 Protocaris, 313 

 Protoconcb, 263, 268, 282 

 Protocystis, 149 

 Protolimulus, 343 

 Protolycosa, 354 

 Protoplasm, 15, 28 

 Protopodite, 290 

 Protoschizodus, 231 

 Protospongia, 39 

 Protozoa, 15-30 

 Protractor muscle, 203 

 Protremata, 174 

 Provinces (Molluscan), 251 

 Proximal end, 57 

 Psajnmobia, 225 

 Pseudocrinus, 149 

 Pseudodeltidium, 164 

 Pseudodiadema, 127 

 Pseudomelania, 241 

 Pseudomoiwtis, 214 

 Pseudoniscus, 343 

 Pseudopodia, 15, 16, 17, 28 

 Pseudoscorpionida, 354 

 Psiloceras, 275 

 Pfma, 213 

 Pterinea, 214 

 Pterinopecten, 216 

 Pteronites, 214 

 Pteropod ooze, 249 

 Pteropoda, 232, 249, 254 

 Pterygotus, 349 



