50 Merriam. — ITew Pocket Mice from Mexico. 



Liomys heterothrix sp. nov. 



. Type from San Pedro Sula, Honduras. No. 90,161 $ ad., U. S. Na- 

 tional Museum, Biological Survey Collection. Collected July 16, 1897 

 by J. C. IngersoU. Original No. 20 (884x). 



Characters. — Size medium, a little larger than L. crispus setosus, its 

 nearest known relative; tail nearly naked, about equaling head and 

 body; color grizzled brownish, the blackish dorsal bristles overlaid by 

 slender protruding hairs with recurved rusty tips; ears without edging; 

 hind foot with 6 pads. 



Color. — Upperparts dark drab brown, grizzled with black-tipped bris- 

 tles and much more conspicuously with slender ferruginous-tipped hairs 

 which protrude beyond the other hairs and are more or less recurved; 

 underparts and feet yellowish white; tail dark, indistinctly paler below. 



Cranial characters. — Skull similar to that of L. crispus setosus from 

 Huehuetan, Chiapas, but somewhat larger and heavier, and broader 

 across anterior roots of zygomata. 



Measurements. — Type specimen: total length 255; tail vertebrae 126; 

 hind foot 31. 



