INDEX. 



507 



Proboscidea, reproductive organs, 

 431. 



skull, 428. 



stomach, 431. 



teeth, 430. 



vertebrje, 428. 



Protorosauria, 226. 

 Protovertebrne, 11. 

 Psalterium of ruminants, 379. 

 Pterodactylus, skeleton of, 267. 

 Pterosauria, 266. 



groups of, 270. 



skull, 268. 



vertebras, 267. 



Pvthon, dorsal vertebra of, 234. 

 -^ skull, 236, 239. 



E. 



Rabbit, anatomy of, 437. 



brain, 64-69, 440. 



digital muscles, 56. 



limbs, 439, 440. 



muscles, 439. 



reproductive organs, 441. 



skull, 438. 



teeth, 441. 



vertebrae, 437. 



viscera, 441. 



Eaces of man, 494. 



Kana esculenta, cerebro-spinal and 



svmpathetic nervous system of, 



70. 

 Rattlesnake, skull of, 240. 

 Rays, pectoral arch of, 34. 

 — - skull, 21. 

 Renal organs, 105. 

 Reproductive organs, 106. 



of amia calva, 144. 



amphibia, 189. 



anthropomorpha, 487. 



bat, 455. 



birds, 318. 



dog, 421. 



hedgehog, 449. 



lemuridiB, 460. 



man, 490, 492. 



modifications of, 109. 



ostrich, 318. 



porpoise, 410. 



sauropsida, 318. 



Reptilia, characteristics of, 193. 

 groups, 195. 



Respiration, mechanism of, 104. 



organs of, 101. 



in amphibia, 187. 



porpoises, 408. 



saiuropsida, 315. 



teleostei, 162. 



Rhinoceros, general characteris- 

 tics of, 360. 



bones, 361. 



fossa, 363. 



reproductive organs, 862. 



skin, 360. 



skull, 360. 



teeth, 360, 362. 



vertebr.TB, 360. 



viscera, 362. 



Rhynchocephala, 225. 



Rodentia, general characteristics 

 of, 434. 



brain, 435. 



digits, 436. 



reproductive organs, 436. 



teeth, 434, 435. 



vertebrae, 435. 



Ruminating animals, 377. 



act of feeding, 380. 



act of rumination, 381. 



groups of, 382. 



s. 



Salamandra, hindfoot of, 32. 

 Salmo, caudal extremity of, 17. 

 Sacrum of birds, 278. 

 Sauropsida, general characteristics 



of, 113. 



alimentary canal of, 307. 



brain, 302, 803. 



ear, 306. 



eye muscles, 804. 



heart, three forms of, 308. 



larynx, 313. 



liver, 308. 



muscles and viscera, 299, 



nerves, 301. 



reproductive organs, 318. 



respiratory organs, 315. 



stomach, 308. 



tongue of, 307. 



Seals. See Otaridse, Phocidas, 



Pinnipedia. 

 Secretary bird, skull of, 287. 



