INDEX. 



545 



219 ; degeneracy of the limbs of, 

 218; degeneracy in the skeletal 

 structure of, 122; development of 

 the brain of, 122; line of, 113 ; suc- 

 cessive changes in the structure of 

 the skull of, 116; vertebral articu- 

 lation of, 121. 



Reptilia, 88, 94, 95, 98, no, 114, 116, 

 120, 122, 132, 172, 193, 195, 2og, 218, 

 289, 303, 304, 363, 365. 366, 374. 388. 



Retardation, 9, 201. 



Retrogressive evolution in the Verte- 

 brata, 145. 



Reyher, 277. 



Rhinoceros, 313. 314. 



Rhinocerus unicornis, 300. 



Rhipidopterygia, 91, 100, loi, 172, 366. 



Rhizopoda, 249. 



Rhynchocephalia, 1-14, 116. 



Rhynchocyonidae, 305. 



Rhytina, 331. 



Riley, C.V., 531. 



Rodentia, 135, 519. 



Romanes, vi, 471. 



RGse, 333- 



Roux, W., 283, 284. 



Rusa, 196. 



Ryder, J. A., 79. 309. 3". 3i9. 320, 321, 

 323. 346. 349. 36S, 404. 455. 485. 486, 

 518, 519. 520, 521, 529. 530, 531. 532. 



Salamandra, 199. 



Salientia, 109, no, 172, 196. '^W' 



Sandberger, 188. 



San Diego, 244. 



Sarcothraustes, 335. 



Saturnia, 466. 



Saturniidae, 203. 



Sauermann, Dr., 239. 240. 



Sauropterygia, 115, 116. 



Sauvage, Dr., 372. 



Scaphiopidae, 65. 



Scaphiopus holbrookii, 68. 



Scaridae, 108. 



Schismaderma carens Smith, 68. 



Schizocrania, 177. 



Schmankewitsch, V., 230. 



Schools of evolutionary doctrine, 13. 



Schuchert, 191. 



Scincidae, 123. 



Sciuridae, 351. 



Scombridae, 108. 



Scott, W. B., 222, 334t 526, 531, 532. 



Scudder, S., 465. 



Scyphophori, 106. 



Scytopis, 19B, igg. 



Sectorial teeth, 139. 



Sedgwick, 492. 



Seeley, 88, 120, 123. 



Segmentation of the external skele- 

 ton of the Arthropoda, 269 ; origin 

 of, 368. 



Segmentation of the vertebral col- 

 umn, 36S; origin of, 368. 



Selenodont dentition, 320; origin of, 

 323. 



Self-consciousness, 495. 



Semper, 228, 242, 527. 



Sense perception, 495. 



Sensation, 495, 513. 



Serranidae, 108. 



Sex, 516. 



Sexual selection, 389. 



Sharp, B., 269, 531. 



Shetland pony, 423. 



Shipka, 161, 163. 



Shoulder girdles of Anura, 64. 



Sigaretus, 261. 



Siluric, 77, 83, 183, 185, 186, 187, 413, 

 414. 



Siluridae, 103. 



Simia, 159, 170. 



Simiidae, 157, 158. 



Siphocypr^a probleTnatica, 260. 



Siredon lichenoides, ' 200 ; 5. inexica~ 

 nunt, 59. 



Sirenia, 127, 142, 143, 145, 329. 33°, 352, 

 360. 



Skull, of man of Spy, 161 ; of Neander- 

 thal man, 162. 



Smilodon neogceus, 344. 



Solenhofen slates, 123. 



Sonoran, 29. 



South America, 50, 154. 



Sloths, 305. 



Spain, 437. 



Spea hainmondii intermontana, 68. 



Spencer, H., 5, 6, 7, 175, 367. 385. 466, 

 476. 517. 518, 527. 



Sphenodon, 121. 



Spinous plants, 228, 



Spondylus, 267. 



