632 



INDEX. 



Pluteus larva . . . 209 

 Pluvianus .... 486 

 Pneumodermon . . . 329 

 Pneumodichthyidse . . 442 

 Pneumogastric nerve . .381 

 Podical plate of Cockroach . 276 

 Podobranchs of Crayfish . 240 

 Podophthalmata . . . 249 

 Podura . . . .281 

 Poecilopoda . . . 293 

 Poison gland of Snakes 481 



Polar globules ... 56 

 , , in Earthworm 269 



„ in Vertebrates 399 



Pole-cat .... 592 



Polia 160 



Polian Vesicle (Holothuria) . 215 

 PolychKta . . . 165, 185 

 Polycladidea . . .150 

 Polyclinum . . . 363 



Polycyttaria . . .111 



Poly-enzymatic gland of Cray- 

 fish 

 Polygordius . 

 Polymastodon 

 Polynoe 

 Polyodon . 

 Polyphemus 

 Polypodium . 

 Polyprotodontia 

 PolypteruS 



Polystomum 



Polyzoa 



Pondsnail . 



Pons Varolii 



Pontobdella 



Porcellana . 



Porcellenaster 



Porcellio 



Porcupine . 



Porifera 



Porpites 



Porpoise 



Portal vein of Mammals 



Portuguese Man-of-war 



Portunus 



Post -anal gut 



Potamogale . 



Potorous 



Prairie-dog . 



• 239 

 . 187 



• 532 

 . 186 



• 430 

 . 244 



129, 142, 414 



. 569 



• 430 



■ IS5 



■ 199 

 . 328 



■ 380, 556 



196 

 250 

 209 

 248 

 589 

 114 

 143 

 587 

 S6i 

 123 

 250 

 391 

 594 

 571 

 589 



Prawn, 



Preen gland of Pigeon 



Preformation theory 



Priapulus 



Primary vesicles of brain 



Primates 



Pristis . 



Proboscidea. 



Proctodseum 



Procyon 



Procyonidse . 



Proechidna . 



Proganoids . 



Proglottis . 



Pronephros . 



564, 



PAGE 

 250 



46 

 199 



379 

 597 



• 427 

 582-584 



• 389 



• 592 



■ 592 

 566, s68 



■ 430 



■ 157 

 397 



the different 

 Vertebrate groups . . 398 

 Prongbuck .... 579 

 Proscolex . . , -157 

 Prosencephalon . . 379 



Prosopygii . . . .198 

 Prostate glands . . . 562 

 Protandry of Myxine . . 403 

 Protective colouring of Insects 274 

 Proteleidas .... 592 

 Proteles .... 592 

 Proteolepas.. . . . 247 

 Proteomyxa . . . 108 



Proterosaurus . . . 475 

 Proterospongia . . .112 

 Proteus .... 466 

 „ animalcule, j^« Amoeba 105 

 Protobathybius . . .109 

 Protodrilus . . .187 



Protoganoids . . . 442 

 Protogenes .... 109 

 Protohippus . . . 581 



Protohydra . . . 129, 142 

 Protomyxa .... 109 

 Protoplasm . . . 21, 39, 45 

 Protopodite of Crayfish . 234 

 Protopterus .... 427 

 Prototheria . . . 566-568 

 Protovertebraa = Mesoblastic 



segments . . . 377 

 Protozoa . . . 91-113 

 ,, Classification of . 95-6 

 , , Functions in the . 97 

 ,, General interest of . 113 

 „ Immortality of 103,113 



