TEANOPUS. 



of jaw elongate, with lower border inflected and upturned, forming a 

 shallow trough as in Teonoma; infracondylar notch deep; last lower 

 molar with reentrant loop on inner side, passing in front of its mate 

 on outer side. (Merr., 1. c.) 



FIG. 49. TEANOPUS PHENAX. 

 No. 95839 U. S. Nat. Mus. Nat. size. Tooth rows enlarged 6 times. 



300. phenax (Teanopus), Merr., Proc. Biol. Soc. Wash., xvi, 1903, 



p. 81. 

 CHEATING WOOD RAT. 



Type locality. Camoa, Rio Mayo, State of Sonora, Mexico. 



Genl. Char. Similar to Hodomys vetulus in size and appearance. 



Color. Above buffy gray; beneath yellowish white, plumbeous 

 under fur showing on posterior half; cheeks pale gray; outer side of 

 fore leg grayish dusky, inner side white; hind foot whitish; ankles 

 dusky, bordered beneath with white. 



Measurements. Total length, 352; tail vertebrae, 172; hind foot, 

 37.5. Skull: occipito-nasal length, 42.5; Hensel, 35; zygomatic 

 width, 22; interorbital constriction, 5; length of nasals, 16; palatal 

 length, 18; length of upper molar series, 7; length of mandible, 23; 

 length of lower molar series, 8. 



