SIGMODON. 
Fic. 38. SIGMODON H. BORUCA 
No. 10050 Am. Mus. Nat. Hist. Co [wice nat. s 
UPPER 1 H |} LOWER TOOTH V 
Er ged 7 times En ged 7 times 
b.’’”” Beneath ochraceous > S.h. furvus 
e.’ Above mixed yellowish and_ black, 
no chestnut tinge S. h. toltecus 
f.’’ Above dark dull brown S. h. microdon 
o Above eray Drown \...).% ol . ee eens Me DATE wL 
b. Size large; hind foot 32 mm. or more. 
a.’ Under parts white. 
h. mascotensts 
a.’ Above pale cinnamon brown.......S. 
No 
bo 
be | 
