137 
ranging in length from length of body to a little longer than head and 
body ; pelage soft, clear, glossy, with but few bristly hairs; feet and under 
parts white or whitish ; body and tail more or less distinctly bicolor ; up- 
per margin of the orbit sharp, but not extended into a crest. 
1775. 
1792. 
1818. 
1822. 
1829. 
1830. 
1839. 
1849. 
1843. 
1845. 
1822. 
1853. 
1853. 
H&SPEROMYS (VESPERIMUS) LEUCOPUS Coues. 
WUITE-FOOTED Mouse; DEER MOUSE. 
Mus sylvaticus, var., EXrxieben, Syst. An., 1, 1775, 390 (based on 
New York var. of Pennant). 
Mus agrarius var. americanus, “‘ Kerr’s Linneeus, 1792, 231” (based 
on Pennant). . | 
Musculus leucopus, Rafinesque, Amer. Monthly Mag., iii, 1818, 446. 
Mus leucopus, Desmarest, Mamm., 11, 1822, 307.—Harlan, In. Amer., 
1825, 151.—Griffith, Anim. Kingd., v, 1827, 223.—Fischer, Syn- 
opsis, 1829, 326 —DeKay, N. Y. Zool., 1, 1842, 82, pl. 23, fig. 1. 
‘—Aud. & Bach., Q. N. A., i, 1849, 300, pl. 46—Thompson, Nat. 
Hist. Vermont, 1853, 138.—Kennicott, Agric. Rep. U. S. Patent 
Office for 1856 (1857), 99, pl. 10. 
Mus sylvaticus var. noveboracensis, Fischer, Synopsis, 1829, 318 (New 
York variety). 
Cricetus myoides, Gapper, Zoél. Journ., v, 1830, 204, pl. 10 (Canada). 
Mus noveboracensis, Selys-Lon'gchamps, Etudes de Microm, 1839, 67. 
Arvicola emmonsu, DeKay, Rep. Quad. Mass., 1840, 61. 
Hesperomys maniculatus, Wagner, Weigmann’s Archiv., 1843, 1, 
141, and 1845, ii, 148; Abhand. Akad. Wissensch., v, pt. 11, 
1848, 316 (Labrador). 
Hesperomys polionotus, Wagner, Weigmann’s Archiy., 1843, 11, 52 
(Georgia). 
Hesperomys leucopus, LeConte, Proc. Acad. Nat. Sci., Phila., vi, 1852, 
413.—Baird, M. N. A., 1857, 459.— Allen, Bull. Mus. Comp. Zedl., 
i, 1869, 227 (Massachusetts), and ii, 1870, 178 (Florida).—Dall., 
Alaska and its Resources, 1870,577.—Maximilian, Arch. Naturg., 
XVill, 1862, pl. 4, f. 4 (penis-bone); Verz. N. Am. Sdug., 1862, 
156.—Jordan, Man. Vert., 1878, 81; and of mest late writers. 
Hesperomys campestris, LeConte, Proc. Acad. Nat. Sci., Phila., vi, 
1853, 418 (New Jersey; type, No. 4726, Mus. Smiths.).—Aud. & 
Bach., Q. N. A‘, 111, 1854, 295 (after LeConte).—Baird, M. N. A., 
1857, 485 (after LeConte). 
Hesperomys texanus, Woodhouse, Proc. Acad. Nat. Sci., Phila., vi, 
1853, 242; Sitgreave’s Rep. Expl. Zufi River, 1853, 48, pl. 2 
(El Paso, Tex.; type, No. 2559, Mus. Smiths.).—Aud. & Bach., 
