INDEX 
A 
Acanthonyx petiverii, 333 
Accidental distribution, of butterflies, 
116, 117 ; of snakes, 130 ; as ap¬ 
plied to Bermuda, 192, 194 ; of 
freshwater fishes, 232 ; in Antilles, 
265 ; of animals and plants in Gala¬ 
pagos islands, 300, 301, 306, 309 
Achatellina, 308 
Achatina achatina, 380 
Achatinidae, 380, 390 
Acodan brachyotis, 418 
Actoniscus ellipticus, 190 
Adams, life in Alaska during 
Glacial Epoch, 34, 35 ; southward 
retreat of fauna and flora during 
Ice Age, 35, 37, 38 ; centres of dis¬ 
persal in south-east and south-west, 
174 ; “ biotic preserves,” 174 
Adelopoma, 257, 273 ; stolli, 257 ; 
martensi, 257 
Aegialitis sanctae-helenae, 387 
Aeglea laevis, 405 
Aegleidae, 405 
Aestrelata phaeopygia, 302 
Agapeta, 350 
Agarista, 214 
Agassiz, A., subsidence of Bahamas, 
185 ; origin of Galapagos islands, 296 ; 
ocean floor off Panama, 332, 333; 
relict fauna in Lake Titicaca, 361 
Agassiz, L., faunistic isolation of New 
England, 56, 57 
Aglossa, 377 
Agonostomus, 290 ; monticola, 290 
Agraulis, 179 
Agrotis exclamationis, 214 
Alaska, description of, 74, 75 ; Glacial 
Epoch in, 76, 81 ; “ black muck ” 
deposits, 79 ; fauna in Pleistocene, 
78—81 ; mammalian fauna, 91, 92 ; 
flora, 92, 93 
Alberta, game preserves in, 119 
Alces, americanus, 32; bedfordiae, 32; 
machlis, 32 ; gigas, 92 
Alcock, dispersal of Coeciliidae, 251 
Allen, G. M., mammals of West 
Indies, 282 
Allen, J. A., species of reindeer, 5 ; 
species of musk-ox, 7,8;' polar origin, 
of life, 23 ; Glacial Epoch, views 
on, 34 ; Bering Strait land-bridge, 
85 ; American mammalian types in 
Asia, 85 ; opossums, 182 ; specific 
distinctions of Solenodon, 282 ; 
mammalia of Galapagos, 298, 299 ; 
affinities of antarctic lands, 423 
Alligator, 179, 180, 319 ; mississip- 
piensis, 179 ; sinensis, 180 
Allorchestes dentatus, 361 
Alsophis, 288 
Alston, mammals of Central America, 
248 
Alytes, 204 
Amalia, wide distribution of, 213, 214, 
389 ; hewstoni, 213 ; gagates, 213 ; 
ponsonbyi, 214 ; pectinata, 214 
Amathusidae, 369 
Amazon River, 363 
Amblyopsidae, 164—166 
Amblyopsis spelaeus, 165 
Amblyrhiza, 267 ; inundata, 285 
Amblyrhynchus, 302 ; cristatus, 304 
Amblystoma, 136, 137 ; tigrinum, 136, 
137; persimile, 137; jeffersonianum, 
137 
Ameghino, tree-porcupine in Santa 
Cruz beds, 71 ; deer in upper Mio¬ 
cene of Argentina, 109 ; affinities of 
Phlaocyon, 151, 152; southern origin 
of edentates, 244 ; South America 
