330 MACROGEOMYS. ZYGOGEOMYS. 
332. costaricensis (Macrogeomys), Merr., N. Am. Faun., No. 8, 
1895, p. 192, pls. and figs. . 
PacuaRE Pocket GOPHER. 
Type locality. Pacuare, Costa Rica. 
Geogr. Distr. Range unknown. 
Genl. Char. Unique specimen immature. Skull similar to that of 
M. dolichocephalus, but with broader nasals; zygomata standing at 
nearly right angles to axis of skull, the anterior angle abruptly 
rounded; jugal narrower; pterygoids shorter and broader; audital 
bulla disk-shaped and separated by a groove from the bulle. 
Color. Above dark brown; under parts whitish; a large white 
patch on top of head between eyes and ears. 
Measurements. Total length, 330; tail about 80; hind foot, 33, 
without claw. Skull: basal length, 48.5; Hensel, 44.5; zygomatic 
width, 33; interorbital width, 9; length of upper molar series, 13; 
length of single half of mandible, 37. 
333. cherrii (Geomys), Allen, Bull. Am. Mus. Nat. Hist., 1893, 
P- 337: 
CHERRIE’S POCKET GOPHER. 
Type locality. Santa Clara, Costa Rica. 
Geogr. Distr. Costa Rica; range unknown. 
Genl. Char. Nasal pad, tail, and hind feet naked; white head 
patch. Skull differs from that of M. costaricensts in certain par- 
ticulars, such as the jugal, which is large and long and is not covered 
by the maxillary arm of the zygoma; in the horizontal part of the 
zygomatic arch not being strongly convex upward, and has not the 
constriction between the orbital and temporal fossa; and the orbito- 
temporal fossze are broadest at the middle instead of being narrowest. 
Color. Above chocolate or sooty brown, except a large white 
patch on crown; throat, breast, and inner side of limbs dusky grayish; 
rest of under parts grayish buff; tail and feet naked, reddish. 
Measurements. Total length, 275; tail, 80; hind foot, 40. Skull: 
basal length, 47.5; Hensel, 44; zygomatic width, 34; interorbital 
width, 9.5; length of upper molar series, 12; length of single half of 
mandible, 37. 
69. Zygogeomys. Zygomata Pocket Gophers. 
l=; P= uM = ge. 
I—1 II 3-3 
Zygogeomys Merr., Mon. Geomyide, N. Am. Faun., No. 8, 1895, 
p. 195, pls. and figs. Type Zygogeomys trichopus Merriam. 
