50 PEROGNATHUS. 



Perognathus columbianus Merrumi. Bioloj»-ical Survey collection. 

 Proc. Acad. Nat. Sci. Phila., 1894, pp. 263-264, fig. 2, September 27, 1894. 

 =Perognathus lordi columbianus (Merriam). See Osgood, North Amer. Fauna, 

 No. 18, p. 40, September 20, 1900. 



I^IIJ. Skin and skull. Young adult male. Pasco, Washington. 

 May 0, 1891. Collected by C. P. Strcator. Original nunibei- 7t)8. 

 Well-made skin in good condition ; skull perfect. 



Perognathus californicus dispar Osgood. Biological Survey coll. 



North Ainer. Fauna, No. 18, pp. 58-59, September 20, 1900. 



Hiss- Skin :md skull. Adult male. Carpenteria, Santa Barbara 

 County. Califoi-niu. December 19, 1891. Collected by E. W. 

 Nelson. Original luunber 1655. 



Well-made skin in good condition ; skull i>erfect. 



Perognathus (Chaetodipus) eremicus Mearns. 

 Bull. Amer. Mus. Nat. Hist., X, p. .300, August ol, 1898. 



=Perognathus penicillatus eremicus (Mearns). See Osgood, North Amer. 

 Fauna, No. 18, j.. 48, September 20, 1900. 



IKII- Skinand skull. Adultfemale. Fort Hancock, El Paso County, 

 Texas. June 27, 1893. Collected by Di-. E. A. Mearns, U. S. A. 

 Original number 2380. Catalogued ,Tuly 29, 1893. 



Well-made skin in good condition, but the tail has a break in both proximal 

 and distal j)ortions. Skull nearly perfect ; a piece out of supraoccipital ; right 

 malar lacking. 



Perognathus fallax Merriam. 



North Amer. Fauna, No. 1, p. 19, October 25, 1889. 



^684- ^'^l^i" iinf^ skull. Adult mule. San Bernardino, California. 

 " Reche Canyon, 3 miles southeast of Colton, San Bernardino 

 County." (Osgood, North Amer. Fauna, No. 18, p. 55.) April 

 21, 1887. Collected by F. Stephens. Original number 424. Cat- 

 alogued June 17, 1887. 



Well-made skin in good condition ; skull perfect. 



Perognathus flavus Baird. 



Proc. Acad. Nat. Sci. Phila., VII, p. 332, this paper was favoral)ly reported for 

 j>ublication April 24, 1855. 



tVs",. Fragment of skull (skin lost). El Paso. Texas. 1851. Col- 

 lected ])}■ J. II. Clark. United States and Mexican Boundary Sur- 

 vey. Cattdogued May 19, 1853. 



The skull. No. 11.30, is represented by the anterior part of the rostrum only. 

 The skin can not ]je found. 



Type not designated by number. Baird says, "Collected at El Paso by J. H. 

 Clark." By referring to Manmials of North America, \^. 425, it is seen that rj'/jj 

 is the specimen he must have had in mind, and is consequently the type. 



