PEROMYSCUS. 139 



tnaciopus, Merr. , N. Am. Faun., No. 4, 1890, p. 53. 



Type locality. Gainesville, Florida. 



Geogr. Distr. Florida Peninsula. 



Genl. Char. Size large; ears large: tail half as long as head and 

 body. 



Color. Above buffy ochraceous, dorsal area darker; flanks ful- 

 vous; under parts and feet white; tail bicolor; dusky above, white 

 beneath, sparsely haired. 



Mcasiiremen/s. Total length, 161-210: tail, S4-96; hind foot, 24- 

 29; ear. i8-2r. 



191. megalotis. [Hc-speromys), Merr., N. Am. Faun., No. 3, 1890, 



p. 64, pis. 3, 4. 



Type locality. Black Tank, Desert of the Little Colorado, Arizona. 



Geogr. Distr. Desert of the Little Colorado, Arizona. 



Genl. Char. Size large, ears large, tail long. 



Color. Above j'ellowish brown, suffused with reddish brown; 

 sides washed with tawny salmon; ears, orbital ring and tail above 

 dusky; under parts of feet white. Salmon suffusion on breast. 



.\feasuremcnts. Total length, 200; tail vertebra-. loS; hind foot, 

 24: ear 21. 



192. truei. {Hesperomys), Shufeldt, Proc. U. S. Nat. Mus. Wash., 



1885, p. 407, pi. 21. 



Type locality. Fort Wingatc, New Mexico. 



Geogr. Distr. Nevada, Utah and New Mexico. 



Genl Char. Form robust, ears very large; tail thicklj- haired. 



Color. Above yellowish brown mixed with black, darkest on 

 median line: sides fulvous; feet and under parts white. Tail above 

 blackish brown, below white. 



.\feasiireinents. Total length, 169; tail vertebra-, 82; hind foot, 

 20: ear, 25. 



a. nasiitus. (Vesperimus), Allen, Bull. Anier. Mus. Nat. Hist., 1891, 

 p. 299. 



Type locality. Estes Park, Larimer County, Colorado. 



Geogr. Distr. Colorado. 



Genl. Char. Ears large, nearly naked; soles naked: tail much 

 shorter than head and body. 



Color. Above dusky suffused with pale grayish buff; sides yel- 

 lowish buff, forming a distinct lateral band; under parts and feet 

 white. Orbital ring blackish. Tail blackish above, white below. 



Measurements. Total length, 190; tail vertebr;c, 104.7; hind foot, 

 22.4; ear, 69. 



