PEROGNATHUS. 243 



(except throat and center of neck and breast, which are white), 

 fulvous; base of fulvous hair slaty gray; tail above yellowish, beneath 

 white. 



Measurements. Total length, 117; tail vertebrae, 57; hind foot, 

 16. Skull: basilar length, 17.3; greatest medium length, 21.2; mas- 

 toid breadth, n ; nasal length, 7.7; interorbital breadth, 4.9. 



368. flavescens. {F,roi-naf/ius), Merr., N.Am. Faun., No.i, 1889, p.n. 

 copii, Rhoads, Proc. Acad. Nat. Scien. Phil., 1893, p. 404. 

 lype locality. Kennedy, Nebraska. 



Geogr. Distr. South Dakota, Nebraska, Kansas, extending pos- 

 siblj' to Texas, west to Rockj' Mountains. 



Genl. Char. Similar in size to P. fasciatus; colors quite differ- 

 ent. Skull smaller, cranium less arched, interparietal broader; audi- 

 ta! bullae meeting below basisphenoid. 



Color. Above pale yellowish brown lined with blackish: lateral 

 stripe pale fulvous: beneath white to roots of hairs. Around eyes 

 pale fulvous. Tail above pale grayish, beneath white. 



Measurements. Total length, 136; tail vertebra^, 63; hind foot, 

 17; ear, 4. 



369. merriami. (Perognat/u/s), Allen, Bull. Amer. Mus. Nat. Hist., 



1S92, p. 45, pi. Ill, fig. 1-6. 



jiavus, Baird, N. Amer. Mamm., 1857, p. 423. (Part.) Thomas, 

 Proc. Zool. See, 18SS, p. 449. 



mearnsi, Allen, Bull. Am. Mus. Nat. Hist., 1S96. p. 237. 



Type locality. Brownsville, Texas. 



Geogr. Distr. From Washburn, Texas, to Roswell, New Mexico; 

 east to San Antonio, west to Comstock on the Rio Grande. 



Genl. Char. Size smaller than P. flavescens ; color bright, sides 

 golden; tail about equal to head and body. 



Color. Autumn Pelage. Above yellow heavily lined with black; 

 sides golden sparsely mixed with black; beneath white; thighs golden, 

 feet white; subauricular spot pure white; tail pale brownish yellow 

 above, becoming blackish at tip; beneath paler. 



.Measurements. Total length, 1 18; tail vertebra', 55; hind foot. 16; 

 ear, 4. 



n.—gilvus. Osgood, N. Am. Faun., No. 18, p. 22. 



Type locality. Eddy, New Mexico. 



Geogr. Distr. Western Texas and southeastern New Mexico. 



Genl. Char. Similar to P. merriami, paler. 



Color. " Paler and more yellowish than merriami; back and sides 

 well mixed with black: lateral line wide; postauricular spots rather 

 prominent; tail whitish below, slightly dusky above.'" 



