108 NEOTOMODON— 8IGMOD()N. 



Genus NEOTOMO DON. 



Neotomodon alstoni Meriiani. Hi()lo»>ical Survey collection. 



Proc. Biol. Soc. Wash., XII, p. 128, April 30, 1898. 

 50584. Skin and skull. Old male. Nahuatzin, Miclioucaii, Mexico. 

 October 12, 1892. Collected by E. W. Nelson. Original number 

 3580. 



Well-made skin in .^ood condition; skull perfect. 



Neotomodon orizabae JNIerriam. Biological Survey collection. 



J'roc. Biol. Soc. Wash., XII, p. 129, April liO, 1898. 

 53486. Skin and skull. Old male. Mount Orizaba, Puebla, Mexico. 

 April 2(), 1808. Collected by E. W. Nelson. Original number 

 4747. 



Well-made skin in good condition; skull with mastoid and audital hulla- <lis- 

 articnlated; last right upper molar missing. 



Neotomodon perotensis Merriam. Biological Survej'' collection. 



I'roc. Biol. Soc. Wash., XII, p. 129, April 80, 1898. 

 54398. Skin and skull. Adult female. Cof re de Perote, Venx Cruz, 

 Mexico. May 29, L893. Collected by E. W. Nelson. Original 

 number 4897. 



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

 zygoma and riirht parietal. 



Genus SIGMODON. 



Sigmodon alleni Bailey. Biological Survey collection. 



I'roc. Biol. Soc. Wash., XV, pp. 112-113, June 2, 1902. 

 88227. Skinandskull. Adult male. San Sebastian, Jalisco, Mexico. 

 March 15, 1897. Collected by E. W. Nelson and E. A. Goldman. 

 Original mimber 10708. 



W('ll-mad(^ skin in good condition; skull perfect. 



Sigmodon alticola Bailey. Biological Survey collection. 



Proc. Biol. Soc. Wash., XV, p. IIG, June 2, 1902. 

 68231. Skin and skull. Adult male. Cerro San Felipe, Oaxaca, 

 Mexico. August 24, 1894. Collected by E. W. Nelson and E. A. 

 Goldman. Original number 6624. 



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

 hulla. 



Sigmodon alticola amoles Bailey. Biological Survey collection. 



Proc. r.i(.l. Soc. Wash., XV, p. IKi, June 2, 1902. 

 81430. Skin and skull. Adult male. Pinal de Amoles, Queretaro, 

 Mexico. September Is, 1896 (not 1898, as in original description). 

 Collected by E. W. Nelson and E. A. Goldman. Original number 

 10161. 



