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. Zool., xxxix, 



1902, p. 42. 

 BOQUETE POCKET GOPHER. 



Type locality. Boquete, Chiriqui, Panama. Altitude, 4,800 feet. 



Genl. Char. Similar to M. dolichocephalic, 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 vertebrae, 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, u; 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, 1. c.) 



331. pansa (Macrogcomys), Bangs, Bull. Mus. Comp. Zool., xxxix, 



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 vertebras, no; 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, 

 1 1. 8; length of nasals, 23; length of palate to palatal notch, 37; upper 

 molar series, 13; length of single half of mandible, 41. (Bangs, 1. c.) 



