726 



INDEX 



Protracheata, 275. 



Proventriculus, 218, 219, 234, 335, 576, 



S83. 

 Psephurus, 452. 

 Pseudobranchus, 511, 514. 

 Pseudometamerism, 240. 

 Pseudopleuronectes, 470. 

 Pseudopodia, 28. 

 Pseudoscorpionida, 382. 

 Psittacidce, 591, 610; Psiltacus, 610. 

 Psocus, 341. 

 Psoroptes, 381. 

 Psychology, 26. 

 Ptarmigan, 606. 

 Pteranodon, 574. 



PteropidcB, 650; Pleropus, 643, 651. 

 Pterosauria, 573. 

 Pterygiophores, 437. 

 Pterygoid, 493, 494. 

 Pterylae, 578. 

 Ptilodus, 685. 

 Ptilogonatidcs, 591. 

 Ptinida, 361. 

 Pubis, 404, 49s, 496. 

 Puffin, 609; Puffinus, 600. 

 Pulex, 360. 

 Pulmonata, 258. 

 Pulp-cavity, 678, 679. 

 Pulvillus, 316. 

 Puma, 656. 

 Pupa, 323, 324. 

 Pupil, 412, 505. 

 Pupipara, 356, 359. 

 Putorius, 655. 

 Pycnogonida, 384, 385. 

 Pygostyle, 579, 580. 

 Pyloric stomach, 278, 282. 

 Pyrosoma, 393, 

 Python, 538, 539, 557, 559, 560; Py- 



thonina, 539. 



Quadratojugal, 493, 494. 

 Quadruped, 633. 

 Quail, 590, 606. 

 Queen honey-bee, 312. 

 Quill, 577. 



Rabbit, 633-641, 658, 689; circulatory 

 system, 638; digestive system, 637; 

 excretory system, 639; external fea- 

 tures, 633 ; nervous system, 639 ; re- 

 productive system, 640; respiratory 



system, 639 ; sense organs, 640 ; skele- 

 ton, 634. 



Raccoon, 643, 652, 654. 



Radiale, 404, 496, 497. 



Radiata, 213. 



Radiolaria, 40. 



Radio-ulna, 496, 497. 



Radius, 333, 404. 



Radula, 255, 270. 



Rail, 590, 606. 



Rallidce, 590, 606. 



Rallus, 606. 



Rana, 477, 512, 521, 522; Ranidce, 512, 

 521-522. 



Ratigifer, 669. 



Rat, 643, 658, 660, 689. 



Rattlesnakes, 567-569. 



Rays, 429, 430. » 



Reactions to stimuli, 35, 43, 56, 114. 



Reactiveness, 10. 



Recapitulation, 302. 



Rectrices, 576, 579. 



Rectum, 638. 



Redia, 159, 160. 



Reduction of chromosomes, 82, 85. 



Reduviida, 348. 



Reflex, 225. 



Regeneration, of Amphibia, 523; cray 

 fish, 289 ; earthworm, 230 ; echino- 

 derms, 198, 201, 208; Hydra, 117; 

 Planaria, 155. 



Reindeer, 669, 683. 



Remora, 444, 467. 



Renal portal system, 425, 426, 488, 289. 



Renilla, 140. 



Reproduction, asexual, 80; budding, 80; 

 fission, 80; sexual, 79. 



Reproduction of, Ameba, 32, 33; Cteno- 

 phora, 148 ; Euglena, 42, 44 ; Grantia, 

 96; Hydra, 115; Hydrozoa, 127; 

 Metridium, 136; Mollusca, 271-272; 

 Obelia, 121; Paramecium, 59; Pro- 

 tozoa, 69; sponges, 103. 



Reproductive system of, A mphioxus, 399 ; 

 Ascaris, 170-172; crayfish, 287-289; 

 earthworm, 226, 227, 228; Enterop- 

 neusta, 387, 388; frog, 490, 491-492; 

 Gonionemus, 123; honey-bee, 322-324,' 

 Hydra, 109, no; leech, 239; liver 

 fluke, 158; mussel, 250; perch, 441: 

 pigeon, 586; Planaria, 152, 153; 

 rabbit, 640-641 ; snail, 257 ; spider, 



