MACROGEOMYS. 329 
greater than the mastoid breadth, and the jugal, which is short and 
broadest in the center, is overlapped by the maxillary and squamosal 
arms of the zygoma; braincase subcylindrical; nasals short, termi- 
nating in front of the zygomatic arches; pterygoids broad and short; 
mandible long, narrow. 
Color. Above dull chocolate brown; muzzle and lower part of 
rump buffy; under parts pale chocolate brown. 
Measurements. Total length, 380; tail, 75; hind foot, 45. Skull: 
basal length, 52-65; Hensel, 48-60; zygomatic width, 33-40.5; inter- 
orbital breadth, 9.5; length of upper molar series, 13-15.5; length of 
single half of mandible, 38.5—48.5. 
330. cavator (Macrogeomys), Bangs, Bull. Mus. Comp. Zodl., xxx1x, 
Ig02, p. 42. 
BoguEtEe Pocket GOPHER. 
Type locality. Boquete, Chiriqui, Panama. Altitude, 4,800 feet. 
Genl. Char. Similar to M. dolichocephalus, but with comparative 
difference in crania; colors darker. 
Color. Above dark seal brown, almost black; beneath similar but 
grizzled, a white patch beneath chin and on under sides of wrists; 
feet and hands naked, yellowish brown; tail naked, yellowish brown, 
end black. 
Measurements. Total length, 360-410; tail vertebre, 108-125; 
hind foot, 47-54; ear, 7-8. Skull: type, basal length, 64; occipito- 
nasal length, 67.8; zygomatic width, 45.8; mastoid width, 33.4; 
interorbital width, 11; length of nasals, 25.4; length of palate to 
palatal notch, 44.6; upper molar series, 15.4; length of single half of 
mandible, 51.2. (Bangs, l. c.) 
331. pansa (Macrogeomys), Bangs, Bull. Mus. Comp. Zool., xxx1x, 
1902, p. 44. 
BROAD-FOOTED PocKET GOPHER. 
Type locality. Bogaba, Chiriqui, Panama. Altitude, 600 feet. 
Genl. Char. Smaller than M. cavator; hind foot proportionately 
larger. 
Color. Above dull, dusky, chocolate brown; under parts griz- 
zled, belly whitish; feet and hands naked, yellowish brown; tail 
naked, yellowish brown, tip dusky. | 
Measurements. Total length, 320-330; tail vertebra, 110; hind 
foot, 48-52; ear, 5-7. Skull: basal length, 54; occipito-nasal length, 
57.6; zygomatic width, 36; mastoid width, 27.8; interorbital width, 
11.8; length of nasals, 23; length of palate to palatal notch, 37; upper 
molar series, 13; length of single half of mandible, 41. (Bangs, l. c.) 
