MURIDA—SIGMODONTES—NEOTOMA FLORIDANA. 15 
Neotoma floridana, Say & Orv, Journ. Acad. Nat. Sci. Phila. iv, 1825, 352, pl. x, f. 1, 2,3, 4; Zodl. Journ. 
li, 1825, 294, pl. x, f. 1, 2, 3, 43 Isis, 1827, xx, 1035—Grirritu, Anim. Kingd. iii, 1827, 160, 
pl. ——Aup. & Bacu., Q. N. A. i, 1849, 32, pl. iv—Grorrroy, Zod]. Voy. Venus, 1855, 154, 
pl. xiii—Krnnicort, Agric. Rep. U. S. Patent Office for 1856 (1857), (no text), pl. xiv.— 
Barrp, M. N. A. 1857, 487.—Maximiian, Arch. Naturg. xviii, 1862, p. —; Verz. N.-Am. 
Siug. 1862, 165.—ALLEeNn, Bull. Mus. Comp. Zodl. ii, 1571, 182.—Cours, Proc. Acad. Nat. Sci. 
Phila. 1874, 175. 
Lemmus floridanus, FISCHER, Synopsis, 1829, 299. : 
Neotoma mexicana, Bard, Proc. Acad. Nat. Sci. Phila. 1855, vii, 333; M. N. A. 1857, 490; U.S. & Mex. Bound. 
Surv. ii, pf. ii, 1859, Mamun. p. 44, pl. 24, f. 1, a to g (skull).—Covgs, Am. Nat. i, 1867, 399. 
Neotoma micropus, Barrp, Proc. Acad. Nat. Sci. Phila. vii, 1855, 383; M. N. A. 1857, 492; U.S. & Mex. 
Bound. Surv. ii, pt. ii, 1859, Mamm. p. 44. 
Hasrrat.—Southern United States and Northern Mexico. North, some- 
times, to Maryland (Audubon), New York (Bell), and Massachusetts (Gibbs). 
Dakota. Illviois. Kansas. Arkansas. Very abundant in the South Atlantic 
and Gulf States, New Mexico, Arizona, and parts of California. 
Dracnosis.—W. (adultus ) luteo-brunnea, dorso obscuriore, lateribus fulves- 
centibus, infra alba, pedibus niveis, cauda bicolore; (juv.) supra schistaceo-grisea, 
infra candida. Long. tot. 6—-9-poll., caude 4-G-poll., cranii bipoll, pedis 
sesquipoll. 
The adult animal is colored above very nearly like the Norway rat, but 
is brighter, and still more so on the sides. The difference is parallel with that 
between Ochetodon humilis and Mus musculus. hus, Ochetodon is precisely 
the color of a house-mouse, except that the sides have a fulvous or pale duli 
pinkish-brown wash; and in this Neotoma, while the back is finely lined with 
brownish-gray and blackish, as in the Mus decumanus, the sides are quite 
tawny or fawn-color, especially near the line of demarkation between this 
color and the white of the under parts. The color of the upper parts runs 
down on the legs, but stops abruptly at the wrists and ankles, leaving the 
back of the hands and feet snowy white; this is invariable in all the speci- 
mens examined. The under parts are white; on the throat, breast, and low- 
est belly, this color is pure, the fur being white to the very roots; but across 
the middle belly, and on the insides of the limbs, and along the sides of the 
body generally, the appearance is only whitish, because the ashy bases of the 
hairs show through. On the head, the color of the upper part is rather darker 
or grayer than elsewhere, and the extreme snout is of this shade; but the 
whole upper lip is broadly white, like the under. The whiskers, which reach 
to or beyond the shoulders, are part black, part white. The ears, which are 
dusky in the dried state, perhaps showing somewhat of flesh-color in life, are 
nearly naked on both sides, and especially inside; but close inspection shows 
