712 



INDEX. 



Patella valgata, 368 

 Pauropoda, 356, 386 

 Pauropus Lubbockii, 356 

 Pearl oyster, 353 



shell, 353 

 Pedicellaria, 97 

 Pediculati, 460 

 Pedipalpi, 363, 386 

 Pelagic molluscs, 358, 369 

 Pelecanus erytlirorliyuclms, 535 

 Pelican, 543 

 Pelobates, 484 

 Pelodytes (a genus of frogs), 484 



(a genus of thread worms), 

 164 

 Pelomyxa palustris, 34 

 Pelopseus, 383 

 Peltogaster, 39G, 397 

 Pelycosauria, 513 

 Peuella, 398 

 Penguin, 541 

 Petmatula aculeata, 86 

 Pentacrinus, 101 



Pentacta frondosa, anatomy of, 137 

 Pentastoma, 361 

 Pentremites, 107 

 Perca fluviatilis, 455 

 Perch, 455 



sea, anatomy of, 434 

 Peridinium, 34 

 Peripatus, anatomy of, 355 

 Perisarc, 61 

 Perissodactyla, 600 

 Peila, 367 

 Perophora, 301 

 Petalosticha, 133, 138 

 Petromyzon marinus, 410 



niger, 410 



nigricans, 410 

 Pezopliaps solitarius, 547 

 Phalangella flabellans, 186 

 Phalangium, 363 

 Pharyngobrancliii, 408 

 Phascolosoma cfemeiitarium, 334 



Gouldii, 333 

 Pheronema Aunse, 48 



Phocsna brachycium, 595 



lineata, 595 

 Phffinicopterus ruber, 544 

 Phoronis, 333 

 Phosphorescent annelides, 237 



ascidians, 303 



Hydrozoa, 70 



Insects, 375 



Protozoa, 33 



worms, 337 

 Phrynosoma Douglassii, 503 

 Phylactotemata, 188 

 Phyilocarida, 311, 335 

 Phyllopoda,.300 

 Physa heterostropha, 265 

 Physalia arethusa, 68 

 Physeter macrocephalus, 594 

 Physiology, 13 

 Picarise, 550 

 Pigeon, anatomy of, 535 

 Pilidium, 317 

 Pill bug, 306, 307 

 Pipa Americana, 485 

 Pipe fish, 461 

 Pirarucu, 443 

 Pisces, characters of, 411, 463 



development of, 413, 433, 445 

 Pissodes strobi, 373 

 Plagiostomi, 410 

 Plagusia, 460 

 Plauarian worms, 141 



land, 145 



lasso- cells of, 143 



nervous system of, 143 



parasitic, 145 

 Planaria torva, 141 

 Plant lice, 371 

 Planula, 59 

 Platygaster, 381 

 Platyhelminthes, 141, 163 

 Platyrhina;, 619 

 Plectognathi, 461 

 Pliohippus, 603 

 Plesiosaurus, 513 

 Plethodon erythronotum, 479 

 Pleurobrachia rhododactyla, 93 



