APRIL, 1914. MAMMALS OF NORTHERN PERU OSGOOD 153 



efforts to secure complete specimens were not successful. In the 

 immediate vicinity of Menocucho, deer were not abundant since con- 

 siderable hunting had been done previous to our arrival. They fre- 

 quent the canefields and are usually hunted with dogs and killed as they 

 break cover to pass from one field to another or to cross one of the open 

 lanes by which each field is subdivided. Deer belonging to this species 

 evidently occur throughout the western ranges of Peru. Tracks were 

 seen at Hacienda Llagueda, in the vicinity of Otuzco, and at Hacienda 

 Limon near the Maranon River. West of the Maranon, tracks were 

 noted occasionally but whether these were of the same species or not 

 is doubtful. At Llagueda a young buck was seen late one evening, as 

 we were returning from an all day's hunt, and but for a fractious saddle 

 mule which backed off the steep side of the trail at a critical moment, a 

 specimen might have been secured. 



Cerms brachyceros Philippi ( = 0docoileus philippii Trouessart) was 

 based on specimens from this part of Peru and probably is a synonym 

 of O. peruvianus. Philippi calls it the "Venado de Cajamarca" and 

 distinctly implies a Peruvian origin for it. 



Hippocamelus antisiensis (d'Orbigny). PERUVIAN GUEMAL. 



The guemal or taruga, as it is called in this part of Peru, was not 

 encountered by our party. So far as learned from inquiry, it never 

 has been common in the region and it was only at rare intervals that 

 we met a man who ever had seen one. A few doubtless remain in the 

 higher parts of both the western and the eastern cordillera but at the 

 points we were able to touch not even a track was found. 



Sciurus cocalis Thomas. 



Two specimens, Yurimaguas. 



Although rather more blackish than the type of this species as 

 described by Thomas, these specimens otherwise agree in such detail 

 that there can be little doubt of their identity. Their occurrence at 

 the same locality with 5. tricolor is the same condition found by Mr. 

 Goodfellow on the Napo River in Ecuador. Evidently they range 

 together over a considerable territory and do not merely overlap, as 

 supposed by Thomas. This is the more interesting since they have so 

 many superficial similarities. In external dimensions, they are prac- 

 tically identical, and each is somewhat variable in color, but certain 



