135 
Neotoma, Say and Ord, Journ. Acad. Nat. Sci., Phila., iv, pt. 11, 1825, 346 
(type N. floridana). 
Myoaus, sp., Richardson, Zool. Journ., iii, 1828, 517 CN. cinerea). 
Teonom4a, J. H. Gray, Proc. Zod! Soc. Lond. 
Generic Characters —Snout pointed, mobile; whiskers long—to or beyond 
shoulders; eyes large and full; ears large, orbicular, nearly naked; tail 
long, either scanty-haired or bushy ; feet small, broad; toes short; thumb 
with an abortive nail; palms naked, with five tubercles; soles naked for 
the anterior two-thirds, with six evident tubercles; pelage soft, lustrous, 
white below; skull elongate, twice as long as wide; posterior aspect 
truncate ; no definite bead on upper margin of orbits; under jaw with 
long, acute coronoid process, overtopping condyle; upper molars mostly 
three-rooted, under with two roots each; upper teeth with usually two 
external and one internal re-entrant loops of enamel ; last tooth in lower 
jaw conspicuously smaller than either of the other two. 
Dr. Coues recognizes three North American species—WN. fuscipes, N. cine- 
rea, of British America and Western United States; N. florzdana, of 
United States and Mexico. Besides the above, one is known from Guate- 
mala, N. ferruginea. 
NEOTOMA FLORIDANA Say and Ord. 
: Woop Rat. 
1818. Mus floridanus, Ord, Bull. Soc. Philom. Phila., 1818, 181.—Desm., 
Mamm., 11, 1822, 307.—Say, Long’s Ex. R. Mts., i, 18238, 54. 
1825. <Arvicola floridanus Harlan, Fn. Amer., 1825, 141; Med. and Phys. 
Res., 1835, 53, pl. x, f. 1, 2, 3, 4. 
1825. Neotoma floridana, Say and Ord., Journ. Acad. Nat. Sci. Phila., iv, 
1320, 302, pl: x, f. 1, 2,3,4: Zool. Journ., 11, 1825; 294) "pl. x, “f.- 
1, 2. 3, 4; Isis, 1827, xx, 1035.—Griffith, Anim. Kinegd., iu1, 1827, 
160, pl. —.—Aud. & Bach., Q. N. A., 1, 1849, 32, pl. iv.—Geoff., 
Zoél. Voy. Venus, 1855, 154, pl. x111.—Kennicott, Agric. Rep. U. 
S. Patent Office for 1856 (1857) (no text), pl. xiv.—Baird, M.N. A., 
1857, 487.—Maximilian, Arch. Naturg., xviii, 1862, p. —; Verz. 
N. Am. Siiug., 1862, 165 —Allen, Bull. Mus. Comp. Zodl., ii, 1871, 
182.—Coues, Proc. Acad. Nat. Sci. Phila., 1874, 175; Mon. 
N. A. Rodentia, 1877, 15—Coues and Yarrow, Rep. Expl. and 
: Surv., W. 100th Merid., 1875, 100 —Jordan, Man. Vert., 1878, 31. 
1829. Lemmus floridanus, Fischer, Synopsis, 1829, 299. 
1854. Neotoma mexicana, Baird, Proc. Acad. Nat. Sci., Phila., 1855, vii, 
333; M. N. A., 1857, 490; U.S. and Mex. Bound. Surv., ii, pt. 
11, 1859, Mamm., p. 44, pl. 24, f. 1, a to g (skull).—Coues, Am. 
Nat., 1, 1867, 399. 
