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 luammals described below were collected by E. W. Nelson 

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

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

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

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

 op])ortuuity 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. 



Tijpt from Ino^ntain^■ near Chilpanciii<!;o, Guerrero, Mexico (altitude, 

 10,000 feet). .\(lult male, No. 70,050, U. S. National Museum, Biological 

 Survey Collection, December 20, 1S94, E. W. Nelson and E. A. Goldman. 

 Original num'ber 7179. 



Chcivaclers. — Size medium ; coloi' rich orange-rufous to ferruginou.^ of 

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

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

 nnich l)righter. Somewhat similar to iV. ferruginea, l)ut smaller and 

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

 A^ 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 INIaria, Guatemala, which agree well 

 with tlie original description of Neotoma ferruginea, have been assumed 

 to be nearly typical and used for comparison. 



9— Pkoc. Biol. Sou. Wash. Vol. XVII, 1904 (T9) 



