350 PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 



truei (Odocoileus), 17, 300. 

 ti'uei (Peroinyscus), 87. 

 truei (Phenacomys), 801. 

 truei (Scapanus), 252. 

 truei (Sciuru.s), 27. 

 truei (Synaptomys), 133. 

 tschuktschorum (Lepus), 180. 

 tumida (Rhogeessa), 204. 

 tundrensis (Sorex), 236. 

 tuza (Geoniys), 130. 

 tuza (Mus) /i<?.5, 130. 

 Tylomys, 88. 



uudicaudus. 88. 



panamensis, 88, S9. 



watsoni, 89. 

 tyloriiinus ( Platygeomys) . 140. 



ubericulor (Lepus), 180. 

 umbriiius (Eutauiias), 45. 

 umbrinus ((ieouiys), 148. 

 umbriuu.s (Peroniysciis), 71. 

 umbrinus (Tainias), 45. 

 umbrinus (Tliomoinys), 148. 

 umbrosus (Microtus), 129. 

 unalascensis (Dicrostonyx), 135. 

 imalascensis (Microtus), 121. 

 ungava (Evotouiys). 115. 

 ungava (Phenacomys), 112. .i02. 

 Ungulata, 12. 

 unicinctus (Dasypus), 11. 

 Urocryptus bilineatus, 208. 

 Urocyon, 202. 



calit'ornicus, 202. 



cinereoargenteus. 202. 

 ■ floridanus, 202. 



fratercnlus, 202. 



guateuuilae, 203. 



iittoralis, 203. 



ocythous, 203. 



parvidens, 204. 



scottii, 203. 



texensis, 203. 



townsendi, 202. 



vira:inianus, 202. 

 Urodernui. 289. 



bilobatum, 289. 



planirostre, 289. 

 Uroleptes, 10. 

 Urotrichus gibbsii, 253. 

 Ursidae, 232. 

 ursina (Phoca), 191, 192. 

 ursinus (Arclocephalus), 192. 

 ursinus (Callorhiruis), 192. 

 ursinus (Promops), 270. 

 Ursus, 232. 



alascensis. 233. 



americanus, 233, 234- 



arctos, 232. 



calit'ornicus, 233. 



Ursus cancrivorus, 228. 



dalli, 232. 



emmonsi, 234. 



emmonsii, 234. 



ferox, 232. 



floridanus, 234. 



glacilis, 234. 



gulo, 218. 



horriaeus, 233. 



horribilis, 232, 233. 



lotor, 228. 



luscus. 218. 



luteolus, 234. 



niaritimus, 234. 



middendorffi, 232. 



richard.soni. 233. 



sitkensis, 232. 



sornborgeri, 234. 



taxus, 217. 

 utahensis (Eutamias), 41. 



vafer (Vulpes), 205. 

 vafra (Vulpes), 205. 

 vaga (Lutra), 211. 

 vagrans (Sorex), 237. 

 vallicola (Microtus). 120. 

 Vampyrops, 290. 



"lineatus, 290. 



vittatus, 290, 291. 

 Vampyrus, 279. 



auritus, 279, 2S0. 



cirrhosus, 281 . 



spectrum, 279. 

 vancouverensis (Sciurus), 33. 

 vancouverensis (Sorex), 238. 

 variabilis (Sciurus), 37. 

 variegatoides (Sciurus), 29. 

 variegatus (Cliironectes), 4. 

 variegatus (Sciurus), 56. 

 variegatus (Spermophilus), 50, .57 

 varius (Sciurus), 300. 

 velifer (Myotis), 255, 307. 

 velifer (Vespertilio), 255. 

 vellerosus (Ateles), 299. 

 vellerosus (Microtus), 303. 

 velox (Can is). 206. 

 velox (Vulpes), 200. 

 ventorum (Sciurus), 33. 

 ventralis (Sorex), 238. 

 venusta (Neotoma), 109. 

 venustus (Taniias), 39. 

 veraecrucis (Lepus), 188. 

 veraecrucis (Pipistrellus), 259. 

 veraecrucis ( Vesper ugo), 259. 

 veraepacis (Sorex), 240. 

 Vesperimus americanus, 7(i. 



difficiiis, 72. 



fraterculus, 73. 



mearnsii, 78. 



