DirODOMYS PERODII'US. 59 



Dipodomys merriami nitratus Merriaiii. Biolojiical Sui'vev coll. 

 I'ruc. Uiul. Soc. Wash., IX, p. 112, June L'l, 1894. 

 flffl- Skin ami .skull. Adult male. Keolor, luyo County, Califor- 

 nia. December 21), 1890. Collected by E. W. Nelson. Oiiuiiml 

 number 100. 



Well-made skin in jjooti condition; .skull i)erlV(t. 



Dipodomys ornatus Mcrriani. Biological Survey collection. 



Proc. Biol. See. Wash., IX, pp. 110-111, June 21, 1894. 

 571HH). Skin and skull. Adult female. Berriozabal, Zacatecas, Mex- 

 ico. December '2\\ 1893. Collected by E. A. Goldman. Original 

 number 5613. 



Well-made skin in good eondition; skull perfect, except for fractures of mas- 

 toid bullae and left audital bulla and absence of last left lower molar. 



Dipodomys perotensis Merriam. Biological Survey collection. 



Proc. Biol. Soc. Wash., IX, p. Ill, June 21, 1894. 

 51285. Skin and .skull. Adult female. Perote, Vera Cruz, Mexico. 

 May 21, 1893. Collected by E. W. Nelson. Original number 

 4840. 



Well-made skin in good condition; skull with right zygoma and lachrymal 

 shelf missing; right mastoid bulla and left audital bulla slightly broken. 



Dipodomys platycephalus Merriam. Biological Surve}' collection. 

 Proc. Biol. Soc. Wash., XX, p. 76, July 22, 1907. 

 139882. Skin and skull. Adult male. Calmalli, Lower California, 

 Mexico. October 1, 1905. Collected by E. W. Nelson and E. A. 

 Goldman. Original number 18248. 



Well-made skin in good condition; skull perfect, except for broken angular 

 pru.t-sses of mandiV)le. 



Dipodomys spectabilis Merriam. Biological Survey collection. 



North Amer. Fauna, No. 4, pp. 46-48, October 8, 1890. 

 2.tM2:J- Skin and skull. Adult male. Dos Cabezos, Cochise Count}^ 

 Arizona. November 22, 1889. Collected by V. Bailey. Original 

 number 095. 



Well-made skin in good condition; skull perfect. 



Genus PERODIPUS. 



Perodipus cabezonae Merriam. Biological Suivey collection. 



I'roc. Biol. Soc. Wash., XVTl, ].p. 144-145, July 14, 1904. 

 54055. Skin and «kull. Adult female. Cabezon, Colorado Descit, 

 California. May 31, 1893. Collected by C. P. Streator. Original 

 numljer 2859. 



Well-made skin in good condition; skull perfect, except for slight i)erfo ration 

 of right audital bulla. 



