872 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
Arctomys hoodi SABINE, Trans. Linn. Soe. xiii, 1822, 590, pl. xxix; Franklin’s Journal, 1823, 663 (Carlton 
House).—Fiscuer, Synop. Mam. 1829, 544 (from Sabine).—WaGNER, Schreber’s Siuget. pL 
cexe (name on plate). 
Arctomys (Spermophilus) hoodi RICHARDSON, Faun, Bor.-Amer. i, 1829, 177, pl. xiv. 
Spermophilus hoodi “¥. Cuvier, Suppl. Buffon, i, Mamm. 1831, 337 ”,—MAXIMILIAN, Reise in d. innere 
Nord-Amer. i, 1839, 449; Arch. f. Naturgesch. 1861, 84.—WaGNER, Suppl. Schreber’s Siiuget, 
iii, 1843, 251.—Branpt, Bull. Physico-math. Classe Acad. St. Pétersb. ii, 1844, 379.—ScHInz, 
Syn. Mam. ii, 1845, 69.—GIEBEL, Sauget. 1855, 636. 
Federation Squirrel, Mircn111, J. c. 
Leopard Ground Squirrel, SCHOOLCRAFT, Travels, 182i, 331 (name in index). 
Ecureuil de la Fédération, DESMAREST, 1. ¢. 
Striped American Marmot, SaBrnE, 1. ¢. 
Striped and Spotted Ground Squirrel, Say, Long’s Exped. ii, 1823, 174. —KennicorT, 1. c. 
Spermophile rayé, F. Cuvier, Hist. des Mamm. livr. xlvi, 1824. 
Hood’s Marmot, GODMAN, |. ¢. 
Leopard Marmot, RicaRDsON, |. c. 
Der Leoparden-Ziescl, WAGNER, |. ¢. 
Leopard-Spermophile, AUDUBON & BACHMAN, L. c. 
Striped Gopher, or Prairie Ground Squirrel, Hoy, 1. c. 
Striped Prairie Squirrel, BAIRD, 1. c. 
Var. PALLIDUS. 
Pale Striped Spermophile. 
Spermophilus tridecemlineatus WooDuOUSE, Sitgreaves’s Zuni and Colorado River Exped. 1853, 52 (Ind. 
Terr.).—Bairp, Mam. N. Amer. 1857, 316 (in part).—SucKLEy, Nat. Hist. Wash. Terr. pt, 
iii, 1859, 98 (in part).—Hayprn, Trans. Amer, Phil. Soc. Phila. xii, 1863, 147.— ALLEN, Bull. 
Essex Inst. vi, 1874, 49,57.—Cours & Yarrow, Wheeler’s Expl. West of 100th Merid. v, 
Zo6l. 1875, 120.—Grixne x, Ludlow’s Black Hills of Dakota, 1875, 82. 
Spermophilus tridecemlineatus var. pallidus ALLEN, Proc. Bost. Soc. Nat. Hist. xvi, 1874, 291. 
Speciric cHars.—Length to base of tail 5.50 to 8.50; of tail-vertebree 
2.75 to 4.00; of tail to end of hairs 3.75 to 5.50. Above dark chestnut- 
brown, varying with locality from pale chestnut-brown through reddish- 
chestnut to nearly black, with seven nearly uninterrupted lines of yellowish- 
white, extending from the forehead to the tail, and alternating with six lon- 
gitudinal rows of subquadrate yellowish-white spots; below yellowish-white, 
varying to tawny, strongest on the sides; buttocks more ferrugineous; eye-— 
ring yellowish-white ; upper surface of muzzle. gray, sides and front yellow- 
ish; tail narrow, black both above and below, varied somewhat with chestnut, — 
and whitish-edged. The hairs are reddish-yellow basally, crossed by a broad 
band of black, and light-tipped. General form slender and Musteline; ears 
very small, in the dried skin the auricle being little more than a slightly pro- 
jecting rim; tail, with the hairs,.generally rather more than half the length 
of the head and body. 
Var. TRIDECEMLINEATUS. 
VARIETAL CuARS.—Length to base of tail 7.25 to 8.50; of tail-vertebree 
3.40 to 4.00; of tail to end of hairs 3.40 to 4.75. Above deep chestnut- 
