INDEX 
495 
chain, 297 ; ancient western rocks 
in South America, 345 ; elevation 
of Lake Titicaca, 361 
“ Swift ” lizard, 123, 126, 127 
Sylvilagus, 225 
Symbos, 153—155 ; tyrelli, 80 
Symbranchus marmoratus, 290 
Synaptomys, innuitus, 27 ; sphag- 
nicola, 37 ; cooperi, 28 ; wrangeli, 
92 ; dalli, 92 
Systemodon, 228, 353 
Systrophia, 348 
T 
Talpa europaea, 142 
Talpidae, 142, 143 
Taviias caniceps, 92 
Tapiridae, 228, 352, 353 
Tapirus, amerioanus, 352 ; haysi, 352 ; 
arvernensis, 353 
T arantulidae, 382 
Tayassus tetragonus, 156 
Tcherski, wapiti deer and Siberian 
maral, 68 ; conditions of climate in 
Siberia in Glacial Epoch, 82 ; fossil 
mammals in Siberia, 86 
Teanopus, 201 
Tehuantepec, isthmus of, 236 
Teiidae, 369 
Tenebrionidae, 215, 413 
Tennessee river, alteration of its 
course illustrated by distribution of 
shells, 62 
Teonoma saxamans, 92 
Terrapene putnami, 134 
Terrapin, 132 
Testudo, 315 
Tetrabelodon, 231 
Thamnophis, 128, 222 ; sirtalis, 127 
Theatops erythrocephalus, 217 
Tlieridomyidae, 354 
Thomas, on meadow-voles, 224 ; dis¬ 
covery of Caenolestes, 350 
Thryonomys swinderianus, 372 
Thylacinidae, 399, 403 
Thylacinus, 399 
Thynnidae, 433 
Thysanophora hypolepta, 192, 193 
Thysanura, 411, 412 
Tierra del Fuego, faunistic affinity of, 
429—431 
Tillodontia, 244 ' 
Titicaca, Lake, 361 
Tiger, sabre-tooth, 153, 200 
Tityus florid anus, 178 
Toads, in south-western States, 204 ; 
spade-foot, 205, 220 ; tongueless, 
377 ; Surinam, 377 
Todies, 289 
Toditae, 289 
Toll, fossil mammals in Siberia, 82 
Tomigerus, 389, 390 
Tomocyclus, 269 
Tornatellina, 306 ; chathamensis, 308 
Tortoises, land and freshwater, in drift 
area, 51 ; geological history of, 132, 
222, 236 ; in Central America, 251 ; 
of Galapagos islands, 302, 303, 312, 
313 ; of Africa, Madagascar, and 
South America, 374 
Toucans, 250, 368 
Toula, Tertiary fauna of Gatun, 238 ; 
Tertiary fauna of Panama, 243 
Toxodontia, 399 
Transeau, bog plant societies, 34 
Tree-frog, Florida, 173 
Tree-swifts, 36S 
Tremarctos ornatus, 350, 351 
Trematherium, 366 
Tres Marias islands, 330 
Tribolonotus, 126 
Trichechus, manatus, 279 ; inunguis, 
279, 360 ; senegalensis, 279 
Trichodina, 390 
Trichoniscidae, 190 
Triglopsis thompsoni, 49 
Trilophodon, 259 
Trinidad island, flora, 385, 386 
Tristan da Cunha, flora and fauna, 
393 
Tristania, 393 
Tristram, polar origin of life, 23, 24 
Trochilidae, 250, 367 
Trogon, resplendens, 250 ; gallicus, 
250 
Trogonidae, geological history of, 250 
Tropidonotus, range and age of, 128, 
129, 222 ; validus, 222 ; viperinus, 
222 
