428 



INDEX 



Passeriformes, 289, 309-312 



Passerine birds, 309-312 



Patriofelis, 341 



Patten, W., 80-82, 171 



Pea-fowls, 299 



Pecora, 388, 391 



Pecten, of bird, 271 



Pectoral fins, 100; of Squalus, 113 



Pectoral girdle, of Squalus, 114; of 

 Teleostomi, 127; of turtle, 228, 229 *; 

 of Ornithorhynchus, 347 * 



Pediculati, 111, 150, 151 



Pelargomorphae, 289 



Pelicanus, beak of, 282 *; 295 



Pelobates cultripes, 197 *, 199 



Pelobatidae, 199 



Pelvic fins, 100 



Pelvic girdle, of Squalus, 114; of 

 Teleostomi, 127; of turtle, 228, 

 229* 



Peragale lagotis, 355 *, 356 



Peramys, 354 



Perameles, 356, embryo of, 405, 406 * 



Peramelidse, 356 



Perch, 111, 146 



Percosoces, 111, 145 



Perennibranchiata, 186 



Perissidactyla, 346, 392-394 



Permian reptiles, 214-217 



Petaurus, 357 



Petrels, 294 ' 



Petrogale xanthopus, 358 *, 359 



Petromyzon, 93 *; P. wilderi, 95 *; egg 

 of P. marinus, 164 



Petromyzontia, 91-96 



Phcenicopterus, beak of, 282 * 



Phaeton, foot of, 280 * 



Phalanger maculatus, 358 * 



Phalangeridse, 357 



Phenacodus primcevus, 342 * 



Phaneroglossa, 196, 198-203 



Pharomacrus moccino, 307 * 



Pharyngeal clefts, definition of, 31; in 

 Amphioxus, 38; in tunicates, 50; in 

 Myxine, 90; in Squalus, 114 



Pharynx, of Amphioxus, 38; of tuni- 

 cates 50, 51 * 



Phascolarctus, 357, 358 *; P. cinereus, 

 358* 



Phascologale, 356 



Phascolomydidae, 359 



Phascolomys, 359 



Phasianus, foot of, 280 *; P. colchicus, 



303* 



Pheasants, 299, 303 * 

 Philander, 354 

 Phoca grcenlandica, 369*, 370, P. 



vitulina, 370 

 PhociaB, 370 



Phocochcerus cethiopicus, 391 * 

 Pholidogaster, 180 

 Pholidota, 346, 377 

 Phoronidia, 33, 60, 67, 68 

 Phoronis, 33, 60, 67, 68 

 Phosphorescent organs, in fishes, 18, 



137 



Photostomias guernei, 136 * 

 Phrynosoma cornutum, 250 *, 251 

 Phyllopteryx eques, 145 * 

 Physeler macrocephalus, 400, 401 *, 402 

 Pica, 372 

 Pici, 308 

 Pickerel, 111 

 Picus, foot of, 280 * 

 Pigeon, rock, 304; passenger, 304, 305 

 Pike, 142 



Pilosa, 374, 375 *, 376 

 Pinnipedia, 368-370 

 Pipa americana, 196, 197 *, 198 

 Pipe-fish, 111, 143, 144 

 Pisces, 33, 68, 69, 97 

 Pithecanthropus erectus, 387 *, 388 * 

 Placenta, allantoic, 409; chorionic, 409, 



410 



Placoid scales, 109, 110; in Squalus, 114 

 Plagiaulacidae, 340 

 Plagiostomi, 111, 121-125 

 Plastron, of turtle, 226, 227 *, 228 

 Platalea, beak of, 282 * 

 Platurus laticaudatus, 256 *, 259 

 Platypus (see Ornithorhynchus} 

 Platyrrhini, 378, 381 

 Platysternidae, 238 

 Platysternum, 238 

 Plectognathi, 112, 146 

 Plesiosauria, 216, 219 

 Pleuracanthidae, 110, 119 

 Pleuracanthus ducheni, 120 *, 121 

 Pleurodira, 241 

 Pleuronectes cynoglossus, 147 * 

 Pleuropterygii, 110 

 Podiceps, foot of, 280 * 

 Poeciliidae, 142 

 Pollock, 146 



