VOL. XVII, PP. 79-82 MARCH 21, 1904 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTIONS OF FIVE NEW MAMMALS FROM 

 MEXICO. 



BY E. A. GOLDMAN. 



The mammals described below -were collected by E. W. Nelson 

 and myself in the course of field work for the Biological Survey 

 in southern Mexico. The wood rats all belong to the ferruginea * 

 group, of which Neotoma tenuicauda is also a member. The 

 Liomys is an additional species of the pictus group. For the 

 opportunity to describe these new forms I am indebted to Dr. 

 C. Hart Merriam, under whose supervision the field work has 

 been carried on. 



Neotoma picta sp. nov. 



Type, from mountains near Chilpancingo, Guerrero, Mexico (altitude, 

 10,000 feet). Adult male, No. 70,050, U. S. National Museum, Biological 

 Survey Collection, December 20, 1894, E. W. Nelson and E. A. Goldman. 

 Original number 7179. 



Characters. Size medium ; color rich orange-rufous to ferruginous of 

 Ridgway; tail long and slender, covered with short hairs; ears rather 

 small. Closely related to N. tenuicauda but slightly larger; color very 

 much brighter. Somewhat similar to JV. ferruginea, but smaller and 

 brighter colored ; outer sides of forearms and hind legs not dusky as in 

 N. ferruginea. 



Color. Type: Ground color of upper parts rich orange-rufous (vary 

 ing in some specimens to ferruginous) of Ridgway, brightest on cheeks, 

 shoulders, and along sides, darkened on face, top of head, and along back 



* Specimens from Volcan Santa Maria, Guatemala, which agree well 

 with the original description of Neotoma ferruginea, have been assumed 

 to be nearly typical and used for comparison. 



9 PROC. BIOL. Soc. WASH. VOL. XVII, 1904 (79) 



