MILLER AND REHN : NORTH AMERICAN MAMMALS. 345 



scottii (Urocyon), 203. 

 scrutator (Mephitis), 213. 

 sellata (Myrmecophaga), 10. 

 seminola (Atalapha), 262. 

 seminolus (Lasiurus), 262. 

 senex (Centurio), 294. 

 senex (Eutamias), 44. 

 senex (Galictis), 219. 

 senex (Tamias), 44. 

 sennetti (Dipodops), 154. 

 sennetti (Perodipus), 154. 

 septentrional is (Vespertilio), 308. 

 sericea (Mazama), 23. 

 serotinus (Vesperugo), 260. 

 serpens ( Micro tus), 127. 

 setosus (Sorex), 237. 

 sezekorni (Phyllonycteris), 287. 

 shastensis (Sorex), 240. 

 shumaginensis (Sorex), 239. 

 Sigmodon, 89. 



arizonae, 90. 

 borucae, 89. 

 colimae, 90. 

 eremicus, 90. 

 fulviventer, 90. 

 hispidus, S9, 90. 

 littoralis, 90. 

 mascotensis, 91. 

 minima, 91. 

 minimus, 91. 

 pallidus, 90. 

 spadicipygus, 91. 

 texianus, 91. 

 toltecus, 91. 

 Sigmodontomys, 95. 



alfari, 95. 



silus (Sciuropterus), 62. 

 Simia belzebul, 296. 

 capucina, 299. 

 fatuellus, 299. 

 hypoleuca, 299. 

 inidas, 296. 

 paniscus, 298. 

 sciurea, 297. 

 trivirgata, 298. 

 similis (Dipodomys), 52. 

 similis (Sorex), 307. 

 simiolus (Dipodomys), 152. 

 simplex (Neotoma), 105. 

 Simplicidentata, 24. 

 sinaloae (Marmosa), 5. 

 sinaloae (Neotoma), 108. 

 sinaloensis (Sciurus), 27. 

 Sinetherus, 173. 

 sitkensis (Microtus), 121. 

 sitkensis (Odocoileus), 15. 

 sitkensis (Peromyscus), 82. 

 sitkensis (Ursus), 232. 

 .Sitomys arizonae, 84. 



Sitomys artemisiae, 84. 



auripectus, 68. 



cauadensis, 70. 



decolorus, 88. 



gilberti, 74. 



herroni, 75. 



insolatus, 76. 



keeni, 76. 



macro rhinus, 77. 



major, 78. 



martirensis, 78. 



megacephalus, 78. 



niusculus, 80. 



nigellus. 75. 



pinalis, 70. 



robustus, 82. 



rowleyi, 70. 



subgriseus, 83. 



thurberi, 86. 

 socialis (Sciurus), 27. 

 sola (Neotoma), 103. 

 Solenodon, 254. 



cubanus, 254. 



paradoxus, 254. 

 Solenodontidae, 254. 

 sonora (Lutra), 212. 

 sonoriense (Tayassu), 12. 

 sonoriensis (Dicotyles), 12. 

 sonoriensis (Hesperomys), 86. 

 sonoriensis (Peromyscus), 86. 

 sonoriensis (Spermophilus), 54. 

 Sorex, 235. 



alascensis, 239. 



alaskanus, 243. 



albibarbis, 243. 



albiventer, 244. 



amoenus, 237. 



aquaticus, 249. 



araneus, 235. 



arcticus, 236. 



bairdi, 239. 



bendirii, 244. 



brevicauda, 245. 



brevicaudus, 245. 



califoruicus, 240. 



carolinensis, 245. 



caudatus, 307. 



cinereus, 246. 



cooperi, 235. 



crawfordi, 244. 



cristatus, 253. 



dobsoni, 237. 



evotis, 245. 



fisheri, 241. 



forsteri, 237. 



fumeus, 237. 



glacialis, 238. 



iiodmani, 241. 



haydeni, 235. 



