HETEROMYS. ZAPUS. 323 



Uruapan Spiny Mouse. 



Type locality.  Uruapan, State of Michoacan, Mexico. 

 Geogr. Distr. State of Michoacan, Mexico. 



807. Heteromys sonorana (Merriam). 



Liomys sonorana Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 47. 

 Heteromys sonorana Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 379. Zool. Ser. 

 SoNORA Spiny Mouse. 



Type locality. Alamos, State of Sonora, Mexico. 

 Geogr. Distr. State of Sonora, Mexico. 



808. Heteromys texensis (Merriam). 



Liomys texensis Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 44. 

 Texan Spiny Mouse. 



Type locality. Brownsville, Cameron County, Texas. 



Geogr. Distr. Southern Texas. Range unknown. 



Genl. Char. Size small; hind foot with five tubercles on soles; 

 rostrum narrow; interparietal small, oval. 



Color. Above grayish brown or drab, grizzled with red and 

 blackish hairs, red predominating ; under parts yellowish white ; ears 

 edged with whitish; hind feet and under side of tail white. 



Measurements. Total length, 231 ; tail vertebrae, 114.; hind foot, 30. 



Subgenus C. Xylomys. 



809. Heteromys nelsoni (Merriam). 



Xylomys nelsoni Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 43. 

 Heteromys nelsoni Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 381. Zool. Ser. 

 Nelson's Spiny Mouse. 



Type locality. Pinabete, State of Chiapas, Mexico. 



Geogr. Distr. State of Chiapas, Mexico. Range unknown. 



Family VII. "^Zapodidie. Juiii])iii}>; mice. 



Subfamily I. ZapodinsB. 

 Genus 100. ZapuB. 



Zapus Coues, Bull. U. S. Geol. Surv. Terr., 2d Ser., i, 1875, p. 253. 

 Type Dipus hudsonius Zimmermann. 



*See Lyon, Proc. U. S. Nat. Mus., 1901, pp. 659-668, pis. 25-27, in which 

 paper the author decides that Zapus and Sminmus should be associated in one 

 group as the family Zapodidcc. 



