SCIURIDA, — CLXXXVII. 325 
553. ARCTOMYS Schreber. (MarmoTs.) (dpxros, bear ; pis, 
mouse.) 
1063. A. monax (L.). Woopcuucx. Grounp Hoe. Grizzly 
gray, varying to chestnut and blackish. L.18. T. 5. Hudson’s 
Bay to Va, W. to Neb.; common, burrowing in the ground. 
(Lat., solitary.) Subspec. canadensis (Erxleben). A small dark 
race with short ears and tail, from Quebec and Western Ontario, N. 
554.1 SPERMOPHILUS Cuvier. (oméppa, seed; didos, loving.) 
u. Skull very long and narrow, the snout broad and very long; tail long ; ear 
small. (Jctidomys Allen.) 
1064. S. franklini (Sabine). Gray GorHEer. Scrus GOPHER. 
Yellowish brown, mottled with wavy lines of black. Tail long. 
L.15. T. 53% F.2. Prairies ; N. Ill. and N. W., introduced in 
New Jersey. (To Sir John Franklin.) 
1065. S. richardsoni (Sabine). Grayish buffy with black hairs 
and no distinct markings. Tail short. L. 123, T. 3}. F. 2. 
Dak. and N. W. (To Sir John Richardson.) 
1066. S. tridecemlineatus (Mitchill). Strrrep GopHER. Dark 
brown, mixed with reddish, with 6 to 8 light stripes alternating with 
lines of dots, about 13 streaks in all; yellowish below, with a broad 
black stripe on each side. L. 103. T. 34. Prairies; Tex. to 
Mich. and N. W., common. (Lat., 13-lined.) 
555. EUTAMIAS Trouessart. (ed, well, good; Tamias.) 
1067. B. quadrivittatus (Say). Mountain Cuipmunx. Back 
with 5 black stripes and 4 whitish ones; rump grayish. L. 8. 
T.4. The eastern form, subsp. neglectus (Allen), occurs in the 
forests about Lake Superior. The color duller and heavier, with 
sharper stripes than in the true quadrivittatus, which is found in 
Colorado and Wyoming. 
556. TAMIAS Illiger. (rapias, steward.) 
1068. T. striatus (L.). Carpmunx. GRoUND SquIRREL. Red- 
dish brown; back with 5 black stripes and 2 whitish ones; rump 
reddish. L.11. T. 43. N.Y. to Va. and S., abundant. (Lat., 
striped.) Subspec. lysteri (Richardson) is larger than T. striatus, 
which it replaces to the northeast. Coloration pale. Lake Huron 
to Maine and Hudson’s Bay, 8.to Penn. Subspec. griseus Mearns 
is larger and stouter than the common chipmunk, the reddish tints 
less marked. L.11. Wis.,and western Ontario, W. (Lat., gray.) 
1 Allied to this genus is the Prairie Dog, Cynomys ludovicianus (Ord) of the Rocky 
Mountain region. 
