378 HETEROMYS. 
Geogr. Distr. State of Jalisco, Mexico. 
Genl. Char. Size and dimensions of skull similar to those of 
H. salvini from Guatemala. 
Color. Above mixed grizzled rufous and orange; sides bright 
rufous; lateral line orange rufous; fore limbs white; hind limbs dusky 
on outer sides, white on inner; under parts white; tail blackish above, 
white beneath; ear black, edges white. 
Measurements. Total length, 217; tail, 113; hind foot, 24.8; ear 
from notch, 12. 
a.—rostratuws (Liomys), Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 46. 
LONG-NOSED Spiny MOusE. 
Type locality. Ometepec, State of Guerrero, Mexico. 
Genl. Char. Similar to H. pictus, but somewhat larger; pelage 
coarser. Skull heavy; nasals long, truncate, or notched posteriorly. 
Color. Like that of H. pictus, but not so red. 
Measurements. Total length, 252; tail vertebre, 133; hind 
foot, 29. 
b.—isthmius (Liomys), Merr., Proc. Biol. Soc. Wash., xv, 1902, 
p. 46. 
IsTHMIAN SPINY MOUSE. 
Type locality. Tehuantepec, State of Oaxaca, Mexico. 
Genl. Char. Similar to H. pictus, but differing in color. 
Color. Similar to H. pictus, but with the upper parts very much 
paler and less red, and lateral line faint or absent; cheeks pale grayish 
brown. 
Measurements. Total length, 245; tail vertebrze, 130; hind 
foot, 30. 
*393a. parviceps (Liomys) Goldman, Proc. Biol. Soc. Wash., xvi1, 
TOO4, P.Lo2. 
URUAPAN SPINY MOUSE. 
Type locality. Uruapan, State of Michoacan, Mexico. 
Genl. Char. Size very small, hind feet short, 6-tuberculate. 
Color. Upper parts grizzled brownish fulvous; under parts white; 
faint fulvous lateral line; tail above brownish, beneath whitish; 
hands and feet white; ears with white edges. 
Measurements. Total length, 202; tail vertebra, 110; hind foot, 
24. Skull: greatest length, 28.3; Hensel, 20; zygomatic width, 13; 
interorbital constriction, 6.7; length of nasals, 11.5; interparietal, 
3.28.3; length of upper molar series, alveolar border, 4.2. 
*Description published too late to be included in the regular order of 
numerals. 
