* 82() PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 
Ilystrix prelieiisilis, 173. 
Ictidoiiiys, 46. 
Ictis, 221. 
idahoensis (Evotomys), 115. 
idahoensis (Lepiis), 189, 190. 
idahoensis (Sorex), 307. 
ignavns (Arctomys), 59. 
imperator (Zapus), 306. 
impiger (Reithrodontomys), 97. 
incautus (Vespertilio), 307. 
iiidianola (Spilogale), 215. 
infraluteus (Perognatlius), 156. 
infusca (Saccopteryx), 268. 
infusca (Taxidea), 218. 
infuscatus (Bradypus), 8, 9. 
ingens (Lutreola), 220. 
ingens (Putorius), 220. 
ingrahami (Capromys), 171. 
innuitus (Microtns), 121. 
innuitns (Mictomys), 133. 
innuitus (Synaptomys), 133. 
inornatus (Perognatlius), 305. 
Insectivora, 235. 
insignis (Napaeozapus), 169. 
insignis (Peromyscus), 76. 
insignis (Zapus), 168, 169. 
iusolatus (Peromyscus), 76. 
insolatus (Sitoniys), 76. 
insolitus (Lepus), 188. 
insperatus (Arvicola), 303. 
insulanus (Peromyscus), 76. 
insularis (Lemmus), 303. 
insularis (Lepus). 182. 
insularis (Marmosa), 4. 
insularis (Microtus), 118, 303. 
insularis (ITocyon), 229. 
intermedia (Atalapha), 263. 
intermedia (Neotoma), 102, 105, 106, 
109. 
intermedins (Artiheus), 289. 
intermedius (I)asypterus), 263. 
intermediiLS (Lasiurus), 263. 
intermedius (Perognatlius), 162, 306. 
intermedius (Phenacomys), 111. 
intermedius (Reithrodontomys), 99. 
intermedius (Scalops), 250. 
intermedius (Thomomys), 146. 
interpres (Spermophilus), 51. 
interpres (Tamias), 51. 
interrupta (Mephitis), 214, 215. 
interrupta (Spilogale), 215. 
inyoensis (Eutamias), 45. 
irroratus (Heteromys), 165. 
Ischnoglossa nivalis, 286. 
Isodon pilorides, 170, 171. 
isthmica (Dasyprocta), 174. 
jalapae (Mus), 65. 
jalapae (Oryzomys), 93. 
jamaicensis (Artiheus), 288. 
jubata (Falcifer), 10. 
jubata (Myrmecophaga), 10. 
kadiacensis (Microtus), 121. 
kadiacensis (Putorius), 222, 223. 
keeni (Peromyscus), 76. 
keeni (Sitoniys), 76. 
keenii (Myotis). 258. 
keenii (Vespertilio), 258. 
kenaiensis (Vulpes), 206. 
kennedyi (Oreamnos), 23. 
klamathensis (Lepus), 180. 
klamathensis (Reithrodontomys), 97. 
klamathensis (Sciuropterus), 60. 
kodiacensis (Spermophilus), 48, 4^, 
• 
labiatus (Dicotyles), 13. 
labradorius (Lepus), 180. 
labradorius (Microtus), 117. 
laceyi (Reithrodontomys), 97. 
ladas (Zapus), 166. 
Lagomys collaris, 176. 
princeps, 176. 
schisticeps, 176. 
lagopus (Canis), 206. 
lagopus (Vulpes), 206. 
Lagurus, 126. 
migratorius, 126. 
lagurus (Mus), 126. 
largha (Phoca), 194. 
Larus eburneus, 193. 
lascivus (Sciuropterus), 60. 
Lasionycteris. 258. 
noctivagans, 258. 
lasiopyga (Glossonycteris), 286. 
Lasiurus, 261. 
borealis, 261, 262. 
cinereus, 262, 263. 
intermedius, 263. 
mexicanus, 262.. 
pfeifferi, 262. 
seminolus. 262. 
teliotis, 262. 
Latax, 210. 
lutris, 210. 
lataxina (Lutra), 211. 
lateralis (Sciurus), 51. 
lateralis (Spermophilus), 46, 51. 
lateralis (Tamias), 51. 
laticeps (Thomomys), 146. 
latifrons (Neotoma), 106. 
latifrons (Orthogeomys), 141. 
latifrons (Spilogale), 216. 
latimanus (Phenacomys), 112. 
latirostris (Perognatlius), 306. 
Latra minima, 4. 
latrans (Canis), 208. 
