INDEX 
478 
Arldt, connection between Asia and 
North America, 97 ; Archaean rocks 
on oceanic islands, 277 ; reptiles 
and mollusks in Galapagos islands, 
314 ; land-connection to Galapagos 
islands, 316 ; parallelism of Pacific 
islands, 327 ; former geographical 
conditions of South America, 343, 
344 ; on Atlantic land-bridge, 383 ; 
connection between South America 
and Australian region, 425 
Armadillo in Bridger deposits, 244 ; 
in Santa Cruz beds, 399, 401 ; in 
North America, 401 
Armadillo (Isopod), 309 
Arnold, climate of Pleistocene 
Period, 94—96 
Arthrocomus, 413 
Arvicola (see Microtus and Pitymys ). 
Ascaphus, 204 
Ascension island, 396 
Ashvmnella, 206 
Ashworth, distribution of marine 
shore forms, 16 ; marine worms of 
Patagonia and south Africa, 432 
Asiatic types in America, 83—91, 
earlier and later migrations, 317— 
320 ; route of ancient Tertiary mi¬ 
gration, 328, 329 ; antelopes in 
America, 407 
Astacus (see Potamobius). 
Astrapotheria, 399 
Atalapha (see Lasiurus). 
Ateles vellerosus, 250 
Athabasca - Mackenzie region, fauna 
and flora of, 58—73 
Atherina evermanni, 290 
Atlantic islands, origin of, 383—393 
Atlantic States, effect of moist cli¬ 
mate on vegetation, 167 
Atophyrax, 201 
Auckland island, earthworms of, 424 
Austaut, Asiatic origin of Apollo 
butterflies, 90 
Avocettula, 367 
“ Axolotl,” 137 
B 
Bahamas, raccoon in, 181 ; effect on 
Gulf Stream by elevation of, 185 
(See Antilles.) 
Bailey, distribution of Microtus, 28 
Bangs, mammals of Labrador, 28 ; 
water-vole of Florida, 182 
Bangs and Bradlee, Bermudan birds, 
188 
Banks, scorpions of Florida, 179 
Barbour, on alligators, 180 ; Jamai¬ 
can reptiles and amphibians, 288 ; 
Bahama reptiles and amphibians, 288 
Barrett - Hamilton, external cha¬ 
racters of arctic hare, 9 
Barrett - Hamilton and Bonhote, 
varieties of arctic fox, 11 
Bartonius, 177 
Bassaricyon, 249 
Bassariscus, 201 
Bates, antiquity of forests in South 
America, 364; on Heliconiidae, 36S; 
discovery of Cryptostemma, 369 
Baur, on Galapagos islands, 296; Tro- 
pidurus, 311; harmonic and dishar- 
monic faunas, 311—313; theory of 
origin of Galapagos, 312 ; 
accounts for peculiarities of flora, 
315 ; on Indo - Pacific continent, 
323 
Bear, black, 28 ; barren-ground, 61 ; 
in Alaska, 80 ; spectacled, 350 
Beavers, extinct in Alaska, 80 ; in 
lower Pleistocene, 153 
Beddard, connection between Pata¬ 
gonia and the Australian region, 421 
Beetles, distribution of running, 20 ; 
in Scarboro’ Heights deposit, 43 ; 
of Rocky Mountains, 117, 118 ; of 
south - western States, 215 ; of Old 
Calabar, 381 ; of St. Helena, 387 
Belt, connection of Atlantic and 
Pacific Oceans, 239 ; birds of Cen¬ 
tral America, 250 
Benham, faunistic affinities of New 
Zealand, 424 
Bentham, floral affinities of St. 
Helena, 391 
Berendtia, 206 
Bermuda, 183, 184 ; geology of, 184, 
186 ; comparison with Bahamas, 
185; flora and fauna, 186—194; affi¬ 
nities of fauna, 190 
Berry, Pleistocene climate, 175 ; mid- 
Cretaceous floral affinities, 414 
