12 
Cran. 
Skel. 
Sciurus hudsonius, Pallas. Red Squirrel. 
216. 
1355. 
Cran. 
Skel. 
Sciurus vulpinus, Gmelin. Southern Fox Squirrel. 
623, 
624 
Cran. 
Skel. 
Sciurus cinereus, Linn. Fox or Cat Squirrel of Middle 
214, 
9 1 £ 
States. 
L I 0. 
Cran. 
Skel. 
Sciurus carolinensis, Gmelin. Gray Squirrel. 
Cran. 
14. 
Skel. 
175. 
Pteromys volucella, Cuv. Flying Squirrel. 
Cran. 
Skel. 
Pteromys volucella oregonensis (Bach). Oregon Flying 
896. 
Squirrel. 
Cran. 
Skel. 
Tamias striatus (Linn.). Chipmunk. 
596. 
561. 
Cran. 
Skel. 
Tamias quadrivittatus (Say), Rich. Four-striped Squirrel. 
1361. 
1362. 
Cran. 
Skel. 
Tamias lateralis (Say), Allen. Rocky Mountain Chipmunk. 
Cran. 
U7 A 
1363. 
Skel. 
Spermophilus grammurus (Say), Bach. Line-tail Squirrel. 
< i j , 
1398. 
Cran. 
Skel. 
Spermophilus tridecem-lineatus (Mitch.), Aud. and Bach. 
1312, 
1311. 
Striped Prairie Squirrel. 
1313. 
Cran. 
Skel. 
Spermophilus richardsoni (Sabine), Bd. Richardson's 
1433. 
Gopher. 
Cran. 
Skel. 
Cynomys ludovicianus (Ord.), Bd. Prairie Bog. 
217, 
905, 
218, 
1409, 
835, 
1410. 
903, 
904. 
Cran. 
Skel. 
Cynomys columbianus (Ord.), Allen. Short-tailed Prairie 
1352. 
Dog. 
Cran. 
Skel. 
Sub-Family Arctomyince : Woodchucks. 
Arctomys monax, Linn. Woodchuck. 
219. 
1205. 
Cran. 
Skel. 
Arctomys flaviventer, Aud. and Bach. Yellow-bellied Mar- 
1358. 
mot. 
Cran. 
Skel. 
Family Hystricid.® : Porcupines. 
Erethizon dorsatus, Cuvier. Porcupine . 
978. 
