662 



INDEX 



Omosaurus = Stegosaurus, 4%5 

 Omosternum of Anura, 25 ; taxonomic 



value, 141 



Onychodactylus, 96 ; 0. japonicus, 109 

 Operculum of gills, 44 

 Ophiderpeton, 81 

 Ophidia, 491, 581 f. 

 Ophiophagus, 632 

 Ophiops, 551 

 Ophioxyl&n (plant), 629 

 Ophisaunis, 538 ; 0. apus, 538 ; 0. 



gracttis, 538 



Ophthalnwsaurus, limbs, 481, 481, 484 

 Opisthocoelous, definition, 12 

 Opisthoglossa, 140 

 Opisthoglypha, 592, 606 f., 623 f. 

 Oppel, on classification, 7 

 Oreobatrachus, 241 

 Oreophrynella, 227 

 Ornithocheirus, JfS6 

 Ornithomimus, 417 ; 0. grand is, 4%9 

 Ornithopoda, 425, J$6 

 Ornithopsis, 4^9 

 Ornithoscelida, 416 

 Ornithosuchus, J^S3 

 Orthocosta, 288, 289 

 Orthopoda, 4%4 

 Ossifications, dermal, in Anura, 31, 34 179, 



190, 210, 211 

 Osteoderms=: ossifications in the skin, of 



SpJiargis, 337 ; of Caiman, 337 ; of 



Lizards, 504, 513, 514 

 Osteolaemus, 450 ; 0. tetraspis, 466 

 Ouaran, 543 



Otidenodon, 301 ; 0. rugosus, 310 

 Ovary, 49 

 Oviduct, 49, 51 



Owen, on fossil Reptiles, 303 n. 

 Oxydactyla, 140 

 Oxyglossus, 239, 241 



Pachytriton, 96, 115 ; P. brevipes, 13,2 



Painted Terrapin, 347, 348 ; rate of 

 growth, 349 



Palaeobatrachus, vertebral column, 22, 

 145 



Palaeohatteria longicaudata, 291 ; skull, 

 280, 304 



Paludicola, resembles Engystomops, 166, 

 212, 220; P.fuscomaculata, 220 ; P. bili- 

 gonigera, 221 



Paludina, as food of Trionyx, 407 



Parasternum = the sum total of the Abdo- 

 minal ribs, q.v. ; of Sphenodon, 298 ; of 

 Crocodilia, 440 ; of Ichthyosauria, 480 



Parasuchia, 433 



Pareiasauri, 301, 302, 304 



Pareiasaurus baini, 304 



Parrots, feathers dyed with poison of Den- 

 drobates, 272 



Pelobates, variation of vertebrae, 19 ; 

 sacral vertebra, 22, 161 f. ; 7*. fuscus, 



164 



Pelobatidae, 139, 160 f. ; distribution, 161 

 Pelodytes, 161, 165 ; P. punctatus, 165 ; 



P. caucasicus, 166 

 Pdomedusa galeata, 391 

 Pelomedusidae, 313, 314; distribution, 



332, 390 f. 

 Pelosaurus, 81 

 Pelvic, plexus of Anura, 39 

 Pelvis, of Urodela, 15 ; of Anura, 22, 27 ; 



of Eryops, 286 ; of Microsauri, 289 ; of 



Sphenod&n, 298 ; of Theromorpha, 302 ; 



of Pareiasauri, 305 ; of CynognaHmx, 



307 ; of Dicynodon, 310 ; of Chelonia, 



319, 319, 320 ; of Pleurodira, 388, 389 ; 

 of Dinosauria, 414 ; of Eusuchia, 441 ; 

 of Plesiosauria, 476 ; of Ichthyosauria, 

 480 ; of Pterosauria, 485 ; of Pythono- 

 morpha, 489 ; of Lacertilia, 496 



Pereunibranchiata, 8, 9 ; not a natural 

 group, 65 



Petrels living with Sjjhenodon, 299 



Petrobates, 288, 289 



Phalanges, number of, in Urodela, 15 ; in 

 Anura, 26, 27, 238 ; in Stegocephali, 

 79 ; in Palaeohatteria, 291 ; in Chelonia, 



320, 321 ; in Chelone, 379 ; in Scelido- 

 saurus, 425 ; in Camptosaurus, 427 ; 

 in Laosaurus, 427 ; in Iguanodon, 428 ; 

 in Eusuchia, 441 ; in Plesiosauria 475 ; 

 in Lariosaurus, 477 ; in Ichthyosauria, 

 481, 481 ; in Pterosauria, 485, 485 ; 

 shape in Anura, 138 ; peculiar in l'i/>. 

 151 



Phaneroglossa, 152 



Phaneroglosses, 139 



Phanerotis, 213 



Phisalix, on poison of Amphibia, 37 



P/wlidosaurus, 451 



Phractamphibia, 78 f. 



Phrynaglosses, 139 



Phrynella, 227 ; Ph. pollicaris, 233 



Phryniscus, 226, 227, 230 ; Ph. nigricans, 



230 



Phrynobatrachus, 241 

 Phrynocara, 235, 236 

 Phrynocephalus, 521 ; deserticolous, 493 ; 



coloration, 494 ; Ph. lielioscopus, 522 ; 



Ph. interscapularis, 522; Ph. mystfuviix, 



522 



Phrynoderma, 241 

 Phrynomantis, 226, 228 

 Phrynopsis, 241 

 Phrynosoma, 305, 533; Ph. coronrifnw, 



534, 536 ; Ph. cornutnm, 533, 534 

 Phyllobates, 242 ; Ph. bicolor, 242 ; Ph. 



trinitatis, 242 



Phyllodactylus, 507 ; Ph. europaeus, 507 

 Phyllodromus, 238, 242 

 Phyllomedusa, 189, 203 f. ; Ph. 7n'<-<>/i\ 



203 ; Ph. dacnicolor, 203; Ph. hypochon- 



