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APRIL, 1914. MAMMALS OF NORTHERN PERU — Oscoop 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 Marafion River. West of the Marafion, 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. 
Cervus brachyceros Philippi (=Odocotleus philippit 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). PrRuviAN 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 S. 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 
