170 Fretp Musreum or Naturat History — Zoétocy, Vor. X. 
traps and only secured them by shooting them when they came out and 
ran about in the candlelight during the evenings. After exhausting the 
possibilities of his own hut, he tried various others but had no further 
success. 
Cavia atahualpz Osgood. Mountain Cavy. 
Four specimens, Cajamarca. 
Cavies were obtained only at one locality, a swamp on the out- 
skirts of Cajamarca. Although they seemed fairly common in this 
place, it was difficult to obtain perfect specimens. Most of the area 
was covered with from one to two feet of water and thickly grown with 
tallrushes. Near the edges were stretches of soft spongy turf and pools 
of shallow water covered with floating or partially anchored vegetation: 
Here the runways of the cavies were found threading the rushes and 
passing from one relatively dry place to another. A few traps were 
placed in these runways but seemed to be avoided and no specimens 
could be secured in this way. But although apparently so shy of traps, 
the cavies exposed themselves to view with considerable unconcern 
during a short period just before nightfull, so it was sometimes possible 
to shoot them. The principal difficulty was to sight one in the thick 
rushes before it was so near that a charge of shot would ruin it as a 
specimen. 
Signs of cavies were noted also in a grassy swamp near Tambo 
Ventija east of Molinopampa. All efforts to obtain specimens there 
weré unsuccessful and it was concluded the colony had recently been 
deserted. . 
Viscaccia sp. VISCACHA. 
Viscachas undoubtedly inhabit many of the higher parts of the 
mountains we traversed but the region is near the northern limit of their 
distribution and they are everywhere scarce and difficult to obtain. A 
few burrows at least lately occupied were found along the highest ridges 
above Otuzco and Hacienda Llagueda, but traps placed about them 
remained unsprung. They are said to occur in the mountains sur- 
rounding Cajamarca and even in the rocky cliffs along the river in the 
hot Marafion Valley. West of the Marafion, no reliable reports of 
their occurrence were obtained. 
Sylvilagus capsalis Thomas. 
Two halfgrown young, Hacienda Llagueda. 
These may be tentatively referred to S. capsalis although they are 
ee re 
