INDEX 



T19 



Pla mater, 103* 



Fioariee, 417, 445 



Picas, 488 



Pici, 417 



Pigeons, 416 — See Columba 



Pigeon's milk, 408 



Pigs, 482, 502, 536, 538, 541, 542, 643, 

 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, 606, 516, 545, 

 547, 569, 576, 599 



Pipa americana, 294, 304, 309, 310, 312 



Pipe!-fish, 224, 241 



Pisces, 66, 144 : Appendix, 261 



Pisiform, 322, 456 -See Carpus 



Pithecanthropus, 610, 64? 



Pituitary body, of Afnphioxus, 55 : 

 ■ Oraniata, 71, 72, 87, 102 



Pituitary body, extra-cranial portion 

 (Callorhynchus), 195 



Pituitary diverticulum, 71, 87* 



Pituitary foramen, 450 



Pituitary fossa, 450 



Pituitary pouch, Petromyzon, 132, 133 : 



Myxinoids, 139 

 Placenta, Salpa, 31, 41: Babbit, 476: 



Mammalia, 594 

 Placodontia, 336, 372 

 Placoid scales, 145, 168, 171, 172 

 Placula, 32* 



PlagiavXax becUesi, 601, 640 

 Plankton, 636* 

 Plantain-eaters, 417 

 Plantigrade, 516* 

 Plastron, 341, 347 

 Platalea, 415, 421 

 Platycerrus, 416, 430 

 Platypus— See Ornithorhynchus 

 Ptatyxomus atriatus, 244 

 Plectognathi, 222*, 228, 239 

 Pleistocene period, 641 

 Plesiosomrufi macrocephalus, 372, 373 

 Pleura, 398 



Pleuracanthei, 168*, 188 

 Pleuracanthns ducheni, 168 

 Pleural ribs, 201 

 Pleurodont, 355* 

 Pleuroneetes cynoglossim, 227 

 Pleuronectidce, 221, 226 

 Fleuropterygii, 167* 

 Pliocene period, 641 

 PUohydrax, 607 

 Pliopithecus, 641 



Ploughshare-bone— See Pygostyle 

 Plovers,.416, 424 

 Plumnlse, 423 



Pneumatic duct, of Trout, 210, 211 : 

 Teleostomi, 236 



Pneumaticity of bones, Pigeon, 394 : 

 Aves, 433 



Pncumogastric, 106, 161 



Podicipes, 414, 422 



Poebotherium, 641 



Poephagus, 638 



Poison-glands, in Teleostei, 227 : Ophidia, 

 355, 356, 367 



Poli, 675 



PoUex, 83* 



Polynesian region, 632 



Polyodon, 219, 225, 227, 242 



Polyphyletic, 445* 



Polyprotodont, 562* 



Folyprotodontia, 478* 



Polyptems 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 Phocsena 



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* 

 Praecocious, 409* 

 Prse-oral pit, 61 

 Prse-axial, 295*, 315 

 Pre-anal plate, 315 

 Precaval vein, 93 

 Pre-commissural area, 579* 

 Pre-formation, 671*, 674 

 Pre-frontal, 317, 318 

 Prehallux, 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 



