372 HETEROMYS. 



Measurements. Total length, 220-230; tail vertebrae, 115-123; 

 hind foot, 27-28; ear, 13.5. Skull: total length, 30; basal length, 24; 

 greatest mastoid breadth, 13.5; interorbital constriction, 7; length 

 of nasals, 12; palatal length, 12. 



381. desmarestianus (Heteromys), Gray, Proc. Zool. Soc., 1868, 



p. 204. Alston, Biol. Centr. Amer., Mamm., i, 1880, p. 167, 



pi. 17. % I- 

 COBAN SPINY RAT. 



Type locality. Coban, Guatemala. 



Geogr. Distr. Guatemala. 



GenL Char. Ears moderate; teeth small, "upper flat, lower 

 keeled, narrow in front." 



Color. "Chestnut brown; tip of nape, lips, chin, and under side 

 of the body, hands, and feet and under side of tail white; spines of 

 back white with chestnut tips." (Gray, 1. c.) 



Measurements. Total length, 247.5; tail, I]t 8-5- 



382. longicaudatus (Heteromys}, Gray, Proc. Zool. Soc., 1868, 



p. 204. 



LONG-TAILED SPINY RAT. Tultusia in Guatemala, also applied to 

 Heterogeomys torridus. 



Type locality. Mexico. 



Geogr. Distr. State of Oaxaca, Mexico; range unknown. 



Genl. Char. Tail long; no lateral line; soles 6-tuberculate. 



Color. Above blackish brown, in some specimens with rufous 

 intermixed; sides dark drab brown, uniform, or mixed with rufous; 

 limbs uniform in color with sides; under parts, hands, and feet white; 

 tail above blackish brown, beneath yellowish. 



Measurements. Total length, 247.15; tail, 118.75. 



383. repens (Heteromys}, Bangs, Bull. Mus. Comp. Zool., xxxix, 



1902, p. 45. 

 BOQUETE SPINY RAT. 



Type locality. Boquete, Chiriqui, Panama. Altitude, 4,000 feet. 



Genl. Char. Size large; feet large; soles "6-tuberculate. 



Color. Top of nose and face grayish dusky; upper parts of body 

 mixed dusky, brown, and tawny ochraceous; no lateral line; upper 

 lip, under parts, and inner sides of arms and legs white; upper sur- 

 face of arms gray; outer surface of legs dusky; tail above dusky, 

 beneath white, pencil whitish; ears dusky, bordered with whitish. 



Measurements. Total length, 282-300; tail vertebras, 145-155; 

 hind foot, 32-33; ear, 14-15. Skull: type; basal length, 31.4; 

 occipito-nasal length, 35.4; zygomatic width, 16.4; mastoid width, 



