320 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
deserticola (Hesperomys), 85. 
deserticola (Lepus), 182. 
deserticolus (Hesperomys), 85. 
deserticoliis (Peromyscus), 85. 
desertorum (Neotoma), 103, 106. 
desmarestianus (Heteroniys), 164. 
Desmodontinae, 295. 
Desmodus, 295. 
rotundus, 295. 
rufus, 295. 
diazi (Lepus), 177. 
dickensoiii (Reithrodontoinys), 97. 
Diclidurus, 269. 
albus, 269. 
Dicotyles, 12. 
angulatus, 12. 
labiatus, 13. 
sonorieiisis, 12. 
tajacii, 13. 
Dicrostonyx, 134. 
alasceiisis, 135. 
Imdsonius, 134, 135. 
uelsoni, 135. 
richardsoni, 135. 
unalascensis, 135. 
didactyla (Myrmecophaga), 9. 
didactylus (Bradypus), 8. 
didactylus (Cyclopes), 9. 
didactylus (Cycloturas), 9. 
Didelphia, S. 
Didelpliiidae, 3. 
Didelpliis, 5, 7. 
aurita, 7. 
californica, 7. 
canescens, 4. 
cinerea, 4. 
marsupialis, 7. 
murina, 4^ 5. 
philander, 5. 
pigra, 7. 
Didelphys aurita, 7. 
cinerea, 4. 
derbianus, 5. 
marsupialis, 7. 
murinus, 5. 
nudicaudata, 6. 
quica, 6. 
Virginian a, 7. 
difficilis (Peromyscus), 72. 
difficilis (Vesperimus), 72. 
dilatus (Scapanus), 307. 
Diphylla, 295. 
ecaudata, 295. 
Diplostoma bulbivorum, 144. 
Dipodidae, 166. 
Dipodomyinae, 149. 
Dipodomys, 149. 
agilis, 153. 
ambiguus, 149. 
Dipodomys atronasus, 150. 
calif ornicus, 150. 
chapmani, 153. 
compactus, 153. 
deserti, 150. 
elator, 150. 
exilis, 150. 
melanurus, 151. 
merriami, 149, 150, 15^. 
mitchelli, 151. 
montanus, 150, 151. 
nevadensis, 151. 
nitratoides, 151. 
nitratus, 151. 
ordii, 154. 
ornatus, 151. 
pallidulus, 150. 
parvus, 151. 
perotensis, 152. 
phillipii, 152. 
phillipsii, 149, 152. 
similus, 152. 
siniiolis, 152. 
spectabilis, 152. 
Dipodops longipes, 153. 
palmeri, 154. 
richardsoni, 154. 
sennetti, 154. 
Dipus americanus, 166. 
hudsonius, 166. 
discifera (Hyonycteris), 275. 
discifera (Thyroptera), 275. 
dispar (Neotoma), 104. 
dispar (Perognathus), 163. 
dobsoni (Sorex), 237. 
dolichocephalus (Macrogeomys), 142. 
Dorcelaphus, 14. 
crooki, 15. 
eremicus, 16. 
macrourus, 309. 
texensis, 17. * 
dorsalis (Plutamias), 41. 
dorsalis (Sciurus), 28, 29. 
dorsalis (Tamias), 41. 
dorsata (Hystrix), 172. 
dorsata (Mazama), 23. 
dorsatum (Erethizon), 172. 
dorsatus (Erethizon), 172. 
douglasii (Arctomys), 50. 
douglasii (Geomys), 145. 
douglasii (Sciurus), 33. 
douglasii (Spermophilus), 50. 
douglasii (Thomomys), 145. 
douglassi (Sciurus), 33. 
douglassii (Spermophilus), 50. 
dowii (Elasmognathus), 24. 
drummondi (Arvicola), 117. 
drummondi (Microtus), 117. 
drummondi (Myoxus), 102. 
