INDEX. 



as 



Pleurolepis pellucidus, 456 

 Pleuroma, 298 

 Pleurura of insects, 339 

 Plumatella, 183 

 Pneumopbora, 134 

 Podura, 364 

 Pogoniaa cliromis, 443 

 Potry, 450 

 Poisonous batracliians, 475 



jellyfish, 67 



siplionopbores, 68 



snakes, 497, 499 

 Polycelis, 144 

 Polycladus Gayi, 143 

 Polydora, development of, 333 

 Polykrikos, 37 

 Polymorpbism, 654 



in insects, 8G8 

 Polyodon folium, 428 

 Polypedates, 484 

 Polypide, 181 

 Polyps, coral, 74 

 Polypterus bicliir, 431 



Senegal us, 431 

 Polystomeae, 153 

 Polystomum integerrimum, 153 

 Polyzoa, development of, 185 



structure of, 180, 188 

 Polyzoarium, 181 

 Pomatomus saltatriz, 455 

 Pomolobus pseudoliarengus, 450 

 Pomotis, 455 

 Porcellio, 306, 310 

 Porcupine fisb, 4G3 

 Porifera, 43, 49 

 Porpbyrio coerulescens, 545 

 Porpoise, 595 

 Porsana Carolina, 544 

 Portuguese man-ot-war, 69 

 Potamotrygon, 424 

 Pourtalesia, 124 

 Prestwicbia rotundatus, 323 

 Primates, 618, 639 

 Primnoa reseda, 86 

 Pristis antiquorum, 421 

 Perroteli, 421 



Proboscidea, 597, 629 



Procyon lotor, 615 



Proglottis of tape worms, 156 

 tiematode worms, 150 



Prorbyncbus, 216 



Proscolex of tape worms, 1 56 

 trematode worms, 150 



ProsimiEe, 618 



Protamceba, 19 



Protaster, 111 



Protective resemblance, 487, 675 



Proteida, 478, 488 



Proteus, 478 



Protista, 3 



Protobippus, 603 



Protomonas amyli, 19 



Protomysa, 19 



Protomyxa aurantiaca, 19 



Protoplasm, 5 



Protoplasta, 31 



Protopterus annectens, 430 



Protozoa, 17, 41 



contractile vesicles of, 33 

 Pseudes paradoxa, 487 

 Pseudobrancbus striatus, 478 

 Pseudocrinus, 108 

 Pseudofilaria, young of gregarina, 



30 

 Pseudemys, 510 

 Pseudopleuronectes Americanus, 



460 

 Pseudopodia, 23 

 Pseudopus, 502 

 Psolus epbippifer, 183 

 Psycbology, 13 

 Ptarmigan, 548 

 Pteranodon, 517 

 Pteraster, 114 

 Pterodactyle, 516 

 Pteropoda, 358, 273 

 Pterosauria, 516, 517 

 Pterotracbea coronata, 371 

 Ptyelus lineatus, 371 

 Puffer fisb, 462 

 Pulex irritans, 376 

 Pulmonata, 265 



