892 MONOGRAPHS OF NORTH AMERICAN RUDENTIA. 
CYNOMYS LUDOVICIANUS (Ord) Baird. 
Missouri Barking Squirrel; Missouri “ Prairie Dog”, 
Arctomys ludovicianus “Ord, Guthrie’s Geog. 2d Am. ed. ii, 1815, 292, 302.”—Say, Long’s Exped. Ry. Mts. 
i, 1823, 451 (description), 498 (villages).—HarLan, Faun. Am. 1825, 160.—Gopman, Am. Nat. 
Hist. ii, 1826, 114.—H. Smirn, Griffith’s Cuvier’s An. King. iii, 1827, 198 (with an original 
but very erroneous figure from Lewis and Clarke’s specimen); v, 1827, 247—PRINCE Max, 
Reise in d. in. Nord-Amer. i, 1839, 365..-WaGNER, Suppl. Schreber’s Siiuget. iii, 1843, 261.— 
Scninz, Syn. Mam. ii, 1845, 64.—Sransbury, Salt Lake Exped. 1852, 37. 
Spermophilus ludovicianus Lesson, Man. de Mam. 1827, 244.—“F. Cuvier, Suppl. Buffon’s Hist. Nat. i; 
Mamm. 1831, 316.”—AupuBON & BacHMaANn, Quad. N. Am. ii, 1851, 319, pl. xcix.—Marcy, 
Red River Exped. 1853, 46.—Woopuousz, Sitgreaves’s Expl]. Zuni and Colorado Rivers, 1853, 
52.—Kennicort, U.S. Pat. Off. Rep. Agricul. 1856 (1857), 81, pl. ix. 
Cynomys ludovicianus BatrD, Mam. N. Am. 1857, 331, pl. xlvii (skull and dentition); U. S. and Mex. 
Bound. Surv. ii, 1859, pt. iii, 39—Suckiry, Nat. Hist. Wash. Ter. pt. iii, 1859, 99, 123.— 
Tuomas, Trans. Ill. State Agr. Soc. iv, 1860, 657 (Illinois [?])—Maxrmiian, Arch. f. Natur- 
gesch. 1861, 88.—HayDEn, Trans. Am. Phil. Soc. Phila. xii, 1863, 145.—_STEVENSON, Hayden’s 
Rep. U. S. Geol. Surv. Wyom. 1871, 462.— ALLEN, Bull. Essex Institute, vi, 1874, 49 (bio- 
graphical); Proc. Bost. Soc. Nat. Hist. xvi, 1874, 294; xvii, 1874, 43.—GRrINNELL, Ludlow’s 
Rec. Black Hills of Dakota, 1875, 82.—MERRILL, Forest and Stream, vi, 1876, 369 (habits).— 
“PLUME DEL Rosa”, ib. vii, 1876, 52 (domestication). 
Cynomys socialis RAFINESQUE, Am. Month. Mag. ii, 1817, 45 (= “ Barking Squirrel”, Lewis and Clarke). 
Cynomys grisea RAPINESQUE, Am. Month. Mag. ii, 1817, 45 (= “ Petit Chien”, Lewis and Clarke). 
Arctomys griseus FISCHER, Syn. Mam. 1829, 345 (from Rafinesque). 
Arctomys missouriensis WARDEN, Descrip. Etats-Unis, v, 1820, 627 (= ‘‘ Wishtonwish”, Pike).—DESMAREST, 
Mam. 1822, 329 (from Warden). 
Arctomys latrans HARLAN, Faun. Amer. 1825 306 (= “ Barking Squirrel”, Lewis and Clarke).—FISCHER, 
Syn. Mam. 1829, 345 (from Harlan). 
Petit Chien, LEwis & CLARKE, Travels, Ist Am. ed. i, 1815, 68. 
Prairie Dog, Lewis & CLAark¥, Travels, i, 1815, 67.,—K®ENDALL, Nar. Santa Fé Exped. i, 1844, 188.—GrEGG, 
Commerce of the Prairies, ii, 1845, 228. 
Barking Squirrel, Lewis & CLaRrk¥, Travels, Ist. Am. ed. ii, 1815, 175; 4to Lond. ed. 1815, 469; 8vo Lond. 
ed. iii, 1815, 38. 
Wishtonwish, or Prairie Squirrel, PrxE, Travels, 1810, 156, 180. 
Marmotte du Missouri, WARDEN, |. @. 
Louisiana Marmot, Say, 1. ¢. 
Prairie Marmot, GODMAN, l. c. 
Wistonwish, RICHARDSON, 1. ¢. 
Missouri Prairie Dog, Barrp, }. c. 
Speciric cHars.—Length of head and body 11.50 to 12.50, ranging 
from about 11.00 to 13.00; tail to end of vertebrae 3.00 to 4.00; tail to end 
of hairs 4.00 to 5.00. Above reddish-brown, varied with gray, and with a 
few hairs wholly black; below yellowish- or brownish-white. Tail short, 
flattened, basally above like the back, and brownish-black toward the end, the 
dusky hairs more or less whitish at base. Ears very small, rounded, about 
one-fifth of an inch high. Claws long and strong, but little curved; that 
of the thumb well developed. The character of the pelage varies consider- 
ably with the season, being much finer and softer in winter than in summer. 
In specimens taken in June and July, the pelage is quite short, some- 
