INDEX 



719 



Pia mater, 103* 



Picarise, 417, 445 



Picas, 488 



Pici, 417 



Pigeons, 416 See Columba 



Pigeon's mi Ik, 408 



Pigs, 482, 502, 536, 538, 541, 542. 543, 

 544, 564, 599 



Pike, 196, 220, 223 



Pineal apparatus, of Craniata, 67, 102*, 

 114* : Petromyzon, 132 



Pineal body, 102 : Pineal organ, 102* 



Pineal eye, of Lizards, 329, 330, 361, 

 362 



Pinna of ear, 447, 481 



Pinnipedia, 484*, 505, 506, 516, 545, 

 547, 569, 576, 599 



Pipit americana, 294, 304, 309, 310, 312 



Pipe-fish, 224, 241 



Pisces, 66, 144 : Appendix, 261 



Pisiform, 322, 456 -See Carpus 



/'ithr.ranfhropus, 610, 642 



Pituitary body, of Amphioxns, 55 : 

 Craniata, 71, 72, 87, 102 



Pituitary body, extra-cranial portion 



(Gallorhynchus), 195 

 Pituitary diverticulum, 71, 87* 

 Pituitary foramen, 450 

 Pituitary fossa, 450 

 Pituitary pouch, Petromyzon, 132, 133 : 



Myxinoids, 139 

 Placenta, Salpa, 31, 41: Rabbit, 476: 



Mammalia, 594 

 Placodontia, 336, 372 

 Placoid scales, 145, 168, 171, 172 

 Placula, 32* 



Pl'njiaulax becklesi, 601, 640 

 Plankton, 636* 

 Plantain-eaters, 417 

 Plantigrade, 516* 

 Plastron, 341, 347 

 P/afalea, 415, 421 

 Pfatycercut, 416, 430 

 Platypus See Ornithorhynchus 

 Platytfomus striatus, 244 

 Plectognathi, 222*, 228, 239 

 Pleistocene period, 641 

 Plesiosaurus macrocephalux, 372, 373 

 Pleura, 398 



Pleuracanthei, 168*, 188 

 Pleuracanthus chicheui, 168 

 Pleural ribs, 201 

 Pleurodont, 355* 

 Pleuronectes cynoglossus, 227 

 Plewvnectidce, 221, 226 

 Pleuropterygii, 167* 

 Pliocene period, 641 

 P/.iohydrax, 607 

 P/iopithectift, 641 



Ploughshare-bone See Pygostyle 

 Plovers, 416, 424 

 Plumuhe, 423 



Pneumatic duct, of Trout, 210, 211: 

 Teleostomi, 236 



Pneumaticity of bones, Pigeon, 394 : 

 Aves, 433 



Pneumogastric, 106, 161 



Podicipes, 414, 422 



Poebotherium, 641 



Poephagm, 638 



Poison -glands, in Teleostei, 227 : Ophidia, 

 355, 356, 367 



Poli, 675 



Pollex, 83* 



Polynesian region, 632 



Polyodon, 219, 225, 227, 242 



Polyphyletic, 445* 



Polyprotodont, 562* 



Polyprotodontia, 478* 



Polypteru* bichir, 196, 218, 225, 226, 229, 

 230, 231, 232, 234, 235, 236, 241, 242, 

 630 



Pons Varolii, 472*, 577 



Porcupines, 484, 490, 506. 547, 

 548 



Porpoises, 480 See Phocaana 



Port Jackson Shark, 181, 188 



Portal veins, 156 



Post-anal gut, 85* 



Post-axial, 295*, 315 



Post-caval, 280 



Post-clavicle, 209 



Posterior commissure, 212 



Posterior temporal fossa, 319 



Post-orbital, 318 



Post-patagium, 380* 



Post-temporal, 209 



Potamogale, 630 



Pouters, 378 



Powder-down-patches, 423* 



Prsecoces, 442* 

 Precocious, 409* 

 Prae-oral pit, 61 

 Prge-axial, 295*, 315 

 Pre-anal plate, 315 

 Precaval vein, 93 

 Pre-commissural area, 579* 

 Pre-formation, 671*, 674 

 Pre-f rental, 317, 318 

 Pre-hallux, 274, 304 

 Premaxilla, 80, 81 See Skull 

 Premolars, 458 See Teeth 

 Pre-nasal, 539* 

 Pre-nasal region, 76* 

 Pre-olfactory nerves, 160 

 Pre-opercular, 199 

 Pre-oral pit, Amphioxus, 60, 61 

 Pre-patagium, 380* 

 Pre-pubic process, 176 

 Prepuce, 474* 



Pre-sphenoid, 79*, 80 See Skull 

 Presternum, 449 



Primates, 485*, 492, 552-557, 584, 599, 

 609 



Y Y 2 







