NEW HARVEST MICE 553 



Measurements. — Type specimen (9 ad.): total length 190mm. 

 tail 109; hind foot 21.5. 



REITHRODONTOMYS HIRSUTUS sp. nov. 



Type from Ameca, Jalisco, Mexico (altitude 5,500 ft.). No. 82200. 



$ old. U. S. National Museum, Biological Survey Coll. Feb. 



15, 1S97. E. \V. Nelson and E. A. Goldman. Orig. no. 10537. 



Characters. — Size large (among the largest of the genus) ; tail 

 long and slender; pelage coarse, almost hispid ; ears rather short and 

 pale ; color grizzled yellowish fulvous. 



Color. — Upperparts uniform yellowish fulvous, heavily lined with 

 black Jiairs; the fulvous brightest on sides; underparts including 

 sides of nose, lips (broadly) and fore feet buffy whitish (sometimes 

 pale buffy fulvous) ; a dark spot on ankle ; hind foot sparingly clothed 

 with whitish hairs ; tail dusky above, soiled whitish beneath, without 

 sharp line of demarcation. 



Cranial characters. — Skull large and substantial, in general like 

 \\-\2^\. oi perotnyscus ; braincase somewhat flattened; rostrum medium 

 or rather large ; zygomata rather squarely spreading anteriorly ; nasals 

 broad and bluntl}'^ wedge-shaped posteriorly, ending decidedly anterior 

 to elongated arms of premaxillae ; incisive foramina of moderate 

 length and rather broadly open; bulla; rather small; upper molar 

 series 3.7 mm. 



Measurejnents. — Type specimen ( $ old) : total length 233 mm. ; 

 tail vertebraa 143 ; hind foot 22. 



REITHRODONTOMYS GRISEOFLAVUS sp. nov. 



Type from Ameca, Jalisco, Mexico (altitude 4,000 ft.). No. 82 196. 



$ ad. U. S. National Museum, Biological Survey Coll. Feb. 9, 



1897. E- ^- Nelson and E. A. Goldman. Orig. no. 10501. 



Characters. — Size medium; ears medium or rather short; well 

 haired; tail short; pelage coarse ; similar to ///ri'«/?/^ from the same 

 locality, but very much smaller, with shorter tail (relatively as well as 

 actually) and more hairy ears. 



Color. — Upperparts buffy gray anteriorly, becoming buffy yellow- 

 ish or even buffy fulvo.us posteriorly, everywhere conspicuously and 

 coarsely lined with black hairs; sides (including cheeks in full pelage) 

 light golden fulvous; underparts whitish sometimes suffused with buffy 

 or pale buffy fulvous, the fulvous of side of neck showing in axilla on 

 inner side of fore leg ; a small buffy or fulvous pectoral spot some- 

 times present; lips and chin broadly whitish; fore and hind feet 

 whitish, a dark spot on ankles ; tail brownish above, whitish below, 



