MILLER AND REIIN : NORTH AMERICAN MAMxMALS. 345 
scottii (LTocyon), 203. 
scrutator (Mephitis), 213. 
sellata (Myrmecophaga), 10. 
seminola (Atalapha), 262. 
seminolus (Lasiurus), 262. 
senex (Centurio), 294. 
seiiex (Eutamias), 44. 
senex (Galictis), 219. 
senex (Tainias), 44. 
sennetti (I)ipodops), 154. 
sennetti (Perodipus), 154. 
septentrional is (Vespertilio), 308. 
sericea (Mazama), 23. 
serotinus (Vesperugo), 260. 
serpens (Microtus), 127. 
setosus (Sorex), 237. 
sezekorni (Phyllonycteris), 287. 
shastensis (Sorex), 240. 
shnmaginensis (Sorex), 239. 
Sigmodon, 89. 
arizonae, 90. 
borucae, 89. 
col ill! ae, 90. 
eremicus, 90. 
fulviventer, 90. 
hispidus, <S’,9, 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. 
midas, 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. 
Sinetlierus, 173. 
sitkensis (Microtus), 121. 
sitkensis (Odocoileus), 15. 
sitkensis (Peroniyscus), 82. 
sitkensis (Ursus), 232. 
Sitomys arizonae, 84. 
Sitoniys artemisiae, 84. 
auripectus, 68. 
canadensis, 70. 
decolorus, 88. 
gilberti, 74. 
herroni, 75. 
insolatus, 76. 
keeni, 76. 
macrorliinus, 77. 
major, 78. 
martirensis, 78. 
megacephalus, 78. 
musculus, 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 (Spermopliilus), 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. 
californicus, 240. 
carolinensis, 245. 
caudatus, 307. 
cinereus, 24(5. 
cooperi, 235. 
crawfordi, 244. 
cristatus, 253. 
dobsoni, 237. 
evotis, 245. 
fisheri, 241. 
forsteri, 237. 
fumeus, 237. 
glacialis, 238. 
godmani, 241. 
haydeni, 235. 
