PEROaNATHUS. 53 



jV^V- Mounted skin and skull. Adult female. "W. of Rockj^ Mts." 

 (Mus. Cat.) 1853. Collected b}' Dr. George Suckley. Catalof^ued 

 January 31, 1855. In regard to the localit}', the following is 

 quoted from Osgood, op. cit., p. 36: '*It is also not improbable 

 that the type of Raird's ''inonticola'' was also taken at The Dalles 

 [Oregon]. Haird's queried statement that it came from St. Mary's 

 Mission, Mont., is rendered uuich more doubtful by the unsuc- 

 cessful efforts of recent collectors to obtain additional specimens 

 from that locality. Dr. Suckley, who collected this type, stopped 

 for some time at The Dalles and may have obtained it there."'- 



The i^kin is badly mounted and in poor condition. It is much bleached and 

 the ears are more or less broken, and on the posterior parts of body are two large 

 areas without hair. The skull is in better condition, but upper incisors are 

 broken off to the alveoli ; the posterior parts of the zygomata, left audital l)ulla, 

 and parts about the foramen magnum are broken; lower jaw almost perfect. 



Baird had but one specimen, designated by number. 



Perognathus (Chaetodipus) nelsoni Merriam. Biological Survey coll. 

 Proc. Acad. Nat. Sci. Phila., 1894, p. 266, fig. 6, September 27, 1894. 



50214. Skin and skull. Old female. Hacienda La Parada, San Luis 

 Potosi, Mexico. August 19, 1892. Collected by E. W. Nelson. 

 Original number 8207. 



Well-made skin in good condition; skull perfect. 



Perognathus nevadensis Merriam. Biological Survey collection. 



Proc. Acad. Nat. Sci. Phila., 1894, p. 264, fig. 3, September 27, 1894. 



54828. Skin and skull. Adult male. Halleck, Nevada. July 4, 1893. 

 Collected by V. Bailey. Original number 4070. 

 Well-made skin in good condition; skull perfect. 



Perognathus californicus ochrus Osgood. Biological Survey coll. 

 Proc. Biol. Soc.Wa.sh., XVII, p. 128, June 9, 1904. 



130348. Skin and skull. Young adult female. Santiago Springs, 16 

 miles southwest of McKittrick, Kern County, California. July 30, 

 1903. Collected by L. J. Goldman. Original number 728. 



Well-made skin in good condition; skull perfect, excej)t for broken zygomata. 



Perognathus pacificus Mearns. 



P.ull. Amcr. .Miis. Nat. Hist., X, p. 299, August 31, 1898. 



61022. Skill and skull. Adult female. Edge of Pacific Ocean, at the 

 last Mexican boundar}' monument, No. 258, San Diego County, 

 California. July 12, 1894. Collected by Dr. E. A. Mearns, IT. S. A. 

 Original number 3787. International Boundar}' Commission. 

 Catalogued November 17, 1894. 



Well-made skin in good condition; skull perfect. 



