496 
INDEX 
Tropidurus, 304, 315 
Trotter, origin of land-bird fauna of 
Nova Scotia, 56 
Truncatella, 176 
Tudorella, 272 
Tullberg, dispersal of Microtus, 28 ; 
origin of meadow-voles, 223 ; on 
South Atlantic land-bridge, 372, 
373, 405 
Tundral fauna and flora, 35 
Turkey, in North America, 159 
Turritella, ambulacrum, 428 ; pata- 
gonica, 428 
Turtle, spotted, 132 ; diamond-back, 
132 ; semi-box, 132 ; box, 134 ; 
snapping, 134 ; alligator snapping, 
135 
Tylos, latreilli, 179, 190 ; niveus, 179, 
190 
Typhlichthys subterraneus, 165 
Typlilomolge rathbuni, 136 
Typhlopidae, 252, 253 
Typhlops, tenuis, 253 ; lumbricalis, 
288 
U 
Ulbrich, distribution of Anemone, 114 
TJmbra, limi, 51 ; krameri, 51 
Umbridae, 51 
Unio luteolus, 162 
Unionidae, distribution of, 161, 198, 
254, 405 ; on Pacific slope of North 
America, 162 ; groups of, 254 ; on 
west of Andes, 338 ; of Chile and 
New Zealand, 420 
Upham, elevation of north - eastern 
North America, 41 ; elevation of 
Lake Region, 54, 55 
Urania leilus, 117 
Urochroa, 350 
Urocoptidae, 176, 206, 266 
Uropoda, 258 
Uropodias bermudensis, 190 
Urotrichus, 321 
Ursidae, 350 
Ursus, americanus, 28 ; richardsoni, 
61 ; middendorffi, 92 ; bidderi, 
92 ; dalli, 92 ; eulophus, 92 ; 
kenaiensis, 92 ; emmonsi, 92 ; 
malayanus, 352 ; boeckhi, 352 ; 
etruscus, 352 
Uta, 127 
Utah, lakes of, 103 
V 
Vallentin, Falkland islands, 430 
Vanatta, Bermudan freshwater shells, 
194 ; on Arionidae, 212 
Vanessa, distribution of, 91 ; cardui, 
117 ; antiopa, 214 
Vanhoffen, survival of life in Green¬ 
land during Glacial Epoch, 19 
Varicella, 175 
Vaughan, geology of Florida, 171 
Venericardia planicosta, 199, 357 
Vernonia, 391 
Veronicella, in southern Florida, 176 ; 
schivelyae, 192, 194 ; moreleti, 194 
Verrill, My sis relicta in Lake 
Superior, 48 ; geology of Bermuda, 
184, 185 ; Bermudan flora, 187 ; 
Bermudan spider, 190 ; Central 
American corals, 239 
Vertigo, ovata, 72 ; ventricosa, 72 
Vireo, bermudianus, 188 ; novebora- 
censis, 188 
Viscacha, 353, 403 
Viscaciidae, 353, 403 
Vitrea, 306, 308 
Vitrina, angelicae, 21 ; limpida, 72 
Voles, range of, 28 ; meadow, 223, 
224 ; Jalapa meadow, 224 
Vulpes, lagopus, 11 ; deletrix, 56 ; 
kenaiensis, 92 ; pribilofensis, 92 ; 
beringensis, 92 
W 
Walker, distribution of Margaritana, 
51 ; North American mollusca, 73 ; 
mollusca of Florida, 177 
Wallace, age of fauna and flora of 
New Zealand, 125 ; age of 
Australian fauna, 150 ; Falkland 
island wolf, 151 ; Bermudau fauna 
