INDEX 



66 3 



(I. riu.) is, breeding habits and develop- 

 ment, W4 ; Ph. iheringi, 205 ; breeding 

 habits, 206 



Phylogeny, of Amphibia, 66 ; of Anura, 

 142 f. ; of Reptilia, 282 ; of Lacertilia, 

 515 ; of Ophidia, 592 



Physignathus lesueuri, 523, 524 



Pigment in the skin, 34 



Pipa, 143, 144, 149 f., 150 



Pit-Vipers, 644. 



Placodontia, 311 



Placodus, 301 ; P. gigas, 311 



Plastron, of Chelonia, 315, 321, 321 ; 

 provided with hinges, 323 ; sexual 

 characters of, 331 ; movable in Emys, 

 350 ; of Chelonidae, 321, 321, 322, 

 380 ; of Pelomedusidae, 390 ; of Chely- 

 didae, 399 ; of Trionychoidea, 406 



Platecarpus, 490 



Platemys, suppression of neural plates, 324 ; 

 skull, 399 



Plathander = Xenopus, 146 f. 



Platurus fasciatvs s. colubrinus, 637 



Platydactyla, 140 



Plaiydactylus facetanus, 509, 508 



Platyhyla, 236 



Platypelis, 235, 236 



Platysternidae, 314, 326, 345 



Platysternum megacephcdum, 345 



Plectromantis, 212 



PlesiocMys, 380, 389 



Plesiosauri, ^77 f. 



Plesiosauria, IfiS f. ; vertebrae, 474 



Plesiosauridae, IfiS 



Plesiosaurus, 475, 478 ; P. conybeari, 478 ; 

 P. dolichodirus, 478 



Plethodon, 94, 96, 104, 106; P. erythro- 

 notus, 107 ; P. ghdinosus, 106 



Plethodontinae, 102, 103 



Plethodontohyla, 235, 236 



Pleurodira, 313, 388 f. 



Pleurosaurus, 294 



Pleurosternum, 390 



Plioplatecarpus, 489 



Pliosauridae, 477 



Pliosaurus grandis, 477 



Plover, Egyptian, and Crocodile, 462 



Podocnemis, 390, 391 ; P. expansa, 391 f. ; 

 Bates, on habits of, 392 f. 



Poikilothermous, defined, 67 



Poison, of Amphibia, 37, 38 ; peculiar use 

 of, 272 



Poison-apparatus, of Heloderma, 540 ; of 

 Snakes, 586 f. 



Polacanthus, 4%5 



Polychrus marmoratus, 529 



Polyodcmtophis, 605 n. 



Portschinsky, on parasitic flies, 177 n. 



Postpubis, of Dinosaurs, 414, 424, 426 



Pouchet, quoted, 571 



Predentary bone, of Dinosaur, 424 



Prehallux, of Anura, 28 



Prepubis, of Dinosaurs, 414, 424, 426 



Proganochdys, 389 



Proganosauria, 476 



Proreptilia, 285 



Prosauri, 290 



Prosauria, 288 



Prostherapis, ~4- 



Protection of Amphibia by poison, 38 



Proteidae, 94, 96, 13.! f. " 



Proteroglossa, 140 



Proteroglypha, 625 



Proteus, 96 ; P. anguinus, 133, 134 



Protorosauri, 290, 304 



Protorosaums lincki, 291 



Protosphargis, 336 



Protostega, 336 



Protriton, SO, 81 



Psammodrmnus hispanicus, 558; P. algirus, 



558 



Psammosaurus, 543 

 PsepJwdenna, 337 

 Psephophorus, 336, 337 

 Pseudechis porphyriaceus, 634 

 Pseudis, 212, 213 ; P. paradoxa, 213 f. 

 Pseudobranchus, 96 ; P. striatus, 137 

 Pseudocentrous, defined, 79 

 Pseudophryne, 166, 167, 168 ; spawning, 



223 ; P. australis, 168; P.bibroni, 168 

 Pseudopus, aberrant scaling, 495 ; P. 



paUasi, 538 

 Pseudosphargis, 336 

 Pseudosuchia, 432 

 Ptenopus, 507 ; deserticolous, 494 

 Pteranodon longiceps, 487 

 Pteranodoutes, 487 



Pternohyla, 179, 189; P. fodiens, 207 

 Pterodactyli, 486 

 Pterodactylus longirostris, 487 ; P. spect- 



abilis, 4^7 

 Pterosauri, 486 

 Pterosauria, 484 f- 

 Ptyas = Zamenis, 611 

 Ptychozoon, tail, 506 ; P. homalocephalum, 



512, 512 ; adhesive apparatus, 505 

 Pubis, of Dinosaurs, 414, 424, 426 

 Puff Adder, 639, 639 

 Pygopodidae, 514, 567 

 Pygopus lepidopns, 567 

 Python, 598 ,- P. molurus, 600, 600 ; P. 



regius=P. sebae, 601; P. reticulatus, 



598; P. spilotes, 598, 599 

 Pythoninae, 598 f. 

 Pythonomorpha, 487 f. 

 J'ifi'/s arachnoides, 365 



Radde's "law of the steppe," 493 

 Rana, 241, 249 f. ; sacral vertebrae, 22 ; 

 shoulder-girdle, 25; urine-genital organs, 

 49 ; Tadpoles' horny teeth, 58 ; vocal 

 sacs, 250 ; nuptial excrescences, 250 ; 

 large glandular complexes, 250; distribu- 

 tion, 251 ; species with finger - discs, 



