HETEROMYS. 379 
394. sonorana (Liomys), Merr., Proc. Biol. Soc. Wash., xv, 1902, 
Pp. 47. 
SONORA Spiny Mouse. 
Type locality. Alamos, State of Sonora, Mexico. 
Genl. Char. Size medium; skull with long and slender rostrum, 
the sides parallel; nasals long, emarginate posteriorly; hind foot 
6-tuberculate. 
Color. Above grayish drab, grizzled with fulvous and dark hairs; 
lateral line fulvous; under parts, hands, and feet white; brown band 
across nose; tail above dusky; beneath whitish, grading into dusky 
on terminal third; ears edged with white. 
Measurements. Total length, 262; tail vertebrae, 142; hind foot, 
a. 
395. verzcrucis (Liomys), Merr., Proc. Biol. Soc. Wash., xv, 1902, 
Pp. 47- 
VERA Cruz Spiny MovuseE. 
Type locality. San Andreas Tuxtla, State of Vera Cruz, Mexico. 
Genl. Char. Size medium; skull small; upper surface of anterior 
root of zygomata strongly depressed and rounded; nasals notched 
posteriorly ; interparietal sub-triangular; hind foot 6-tuberculate. 
Color. Above dark brown, mixed with black and fulvous; lateral 
line faint on sides of body; under parts white; tail dusky above, 
whitish beneath; ankles dusky. 
Measurements. Total length, 220; tail vertebre, 108; hind 
foot, 25. 
396. obscurus (Liomys), Merr., Proc. Biol. Soc. Wash., xv, 1902, 
p. 48. 
Dusky Spiny Mouse. 
Type locality. Carrizal, State of Vera Cruz, Mexico. 
Genl. Char. Size rather large; skull heavy, and with high brain- 
case; hind foot 6-tuberculate. 
Color. Above blackish, grizzled with fulvous and whitish, and 
becoming grayish on the sides. 
Measurements. Total length, 230; tail vertebre,* 124; hind 
feet, 31. 
397. phzura (Liomys), Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 48. 
DARK-TAILED SPINY MOUSE. 
Type locality. Pinotepa, State of Oaxaca, Mexico. 
Genl. Char. Size small; ears large; hind foot 6-tuberculate; tail 
short, unicolor except basal third beneath. Skull broad, short, and 
flat; rostrum and nasals short, slender. 
