PEROMYSCUS. 179 
Genl. Char. Similar to P. rujinus; colors paler, ears larger. 
Color. Above yellowish brown, with a tinge of reddish, darkest 
on dorsal line; sides brighter; under parts and feet white; tail black 
above, rest white; ears black, edged with white. 
Measurements. Total length, 160-164; tail vertebre, 66-71; hind 
foot, 20; ear, 20. Skull: total length, 27; basal length, 22; zygo- 
matic breadth, 14; interorbital constriction, 4; length of nasals, 11.5; 
palatal length, 11; length of upper tooth row, 4. (Type.) 
a.—zamelas (Peromyscus), Osgood, Proc. Biol. Soc. Wash., xvi, 
1904, Pp. 59. 
Jet Mouse. 
Type locality. Colonia Garcia, State of Chihuahua, Mexico. Alti- 
tude, 6,700 feet. 
Genl. Char. Similar to P. melanotis, but more sooty; size small. 
Color. Broad black stripe from top of head to base of tail; sides 
dark cinnamon rufous suffused with sooty; orbital ring and base of 
whiskers black; sides of face sooty; patch below eye and lateral 
line rufous; under parts white, plumbeous under fur showing; tail 
above black, beneath white; hands and feet white. 
Measurements. Total length, 160; tail vertebre, 63; hind foot, 
20. Skull: greatest length, 25.9; Hensel, 19.3; zygomatic width, 13; 
interorbital constriction, 4; interparietal, 8x2.2; length of nasals, 
11; palatal length, 3.8; palatine foramina, 5.32.1; postpalatal length, 
8.5; length of upper molar series, 3.3. 
134. spicilegus (Peromyscus), Allen, Bull. Amer. Mus. Nat. Hist., 
1897, p- 50. 
JALIsco SMALL-EARED MOUSE. 
Type locality. Mineral San Sebastian, Mascota, State of Jalisco, 
Mexico. 
Geogr. Distr. State of Jalisco, Mexico; range unknown. 
Genl. Char. Similar to P. floridanus; ears smaller, tail longer. 
Color. Above yellowish brown and dusky, darkest on dorsal line; 
sides yellowish; lateral line ochraceous; under parts white; outer 
surface of arms to wrist fulvous; tarsus dusky, hands and feet white; 
ears dusky; tail above brown, beneath white. 
Measurements. Total length, 188; tail vertebrze, g2; hind foot, 
20. Skull: total length, 28; basal length, 22; interorbital constric- 
tion, 5; length of nasals, 10. (ex Type.) 
a.—evides (Peromyscus), Osgood, Proc. Biol. Soc. Wash., XvII., 
1904, p. 64. 
JuquiLta Mouse. 
Type locality. Juquila, State of Oaxaca, Mexico. 
