Index 



559 



Pleuracanthus alternidentatus. ... 156 



Pleuracanthus elegans 144 



Pleuracanthus erectus 156 



Pleuracanthus fastigiatus 144 



Pleuracanthus gaudryi 272 



Pleuracanthus gracilis i68 



Pleuracanthus gracillimus 144 



Pleuracanthus horridulus 144 



Pleuracanthus laevissimus. . . 144, 156 

 Pleuracanthus parvidens ...187, 287 



Pleuracanthus pulchellus 156 



Pleuracanthus quadriseriatus ...168 



Pleuracanthus robustus 156 



Pleuroplax falcatus 144 



Pleuroplax affinis 278 



Pleuroplax rankinei 144, 278 



Pleuropterygii 271 



Pliocene, continents during 231 



Podocys 253 



Podozamites lanceolatus 205 



Poecilia 246 



Poecilodus jonesii 143, 144 



Pogie 51 



Polycentrus 379 



Polygnathus 108 



Polyodontidae 326 



Polyodon 317 



Polyplacoda 257 



Polyplocodus leptognathus 305 



Polyprotodont marsupials . .441, 442, 



445, 446, 451, 452, 461 



Polypterus 315, 477, 493 



Folypteridae 4, 302, 493 



Polyrhizodus magnus 143, 144 



Polyzoa of Lake Tanganyika. .. .465 

 Pomacentridae 387, 392, 393, 



406, 407, 411, 527 



Pomacentrus 388 



Pompton fish beds 309 



Pons varolii 78 



Portheus molossus ....215, 227, 348, 



356, 522 



Portland beds 195 



Portland oolite 190 



Posidonia bronni 202 



Potassium phosphate 13 



Potomac strata 223 



Powrie 116, 118 



Praelimulus 164 



Prestwich 26, 114 



Prestwich, Cambrian system 96 



Prestwichia in Permian 176 



Princeton Expedition 436 



Friscacara 382, 407, 409 



Pristisomus crassus 187 



Pristisomus gracilis 187 



Pristisomus latus 187 



Pristiurus 208, 239 



Pristodus falcatus 143, 144, 146 



Proboscis of metanemerteans.63, 72, 



73 



Proboscis-pituitary body 78, 505 



Proboscis sheath. . .66, 67, 72, 76, 505 



Productus 2 



Proenvironment 11, 13, 15, 503 



Prelates 405, 409 



Prolebias cephalotes 249 



Prolebias 362, 425 



Pronephrops 90 



Prosser, C. S., on Sunbury shale. 130 



Prostoma 24 



Protacanthodes 287 



Protamia 339 



Proteaceae of Antarctica 457 



Proterozoic 26 



Protitanichthys 128 



Protoplacoda 257, 261, 263 



Protoplasm 9, 10 



Protopterus 55, 62, 133, 136, 



299, 300, 469, 473, 477, 478, 481, 



493, 517, 531 



Protopterus dolloi 301 



Protosphyraena 337, 488, 520 



Protospondylic ganoids 342, 483 



Protospondylei 316 



Prototroctes 360, 376, 452 



Psammodus rugosus . . . 143, 144, 276 



Psammodontidae 155, 280, 282 



Psammosteus 132, 261, 305 



Psephodus magnus 143, 144 



Pseudobornia 268 



Psilophyton 118 



Pseudaphritis 458 



Pteraspis 35, 97, 98, 117, 129, 261 



Pterichthyids 18 



Pterichthys 262 



