342 University of California Publications in Zoology. |Vou. 
On Naked Island Microtus kadiacensis was found abund- 
antly in some of the small meadows and on sparsely wooded 
hillsides. Runways in the rye-grass of the littoral zone were 
rather rare; in fact abandoned runways were nowhere common. 
On many of the hillsides, amid Menziesia bushes and patches 
of Veratrum, many small holes were found where the voles had 
dug among the rootstocks of the grass which had been cut into 
lengths and carried away and stored in the chambers of their 
burrows. 
About the head of Port Nell Juan a large series of Microtus 
was secured. They occurred chiefly near the beach in recently 
formed meadows about the edges of lagoons. These situations 
were very wet tundra supporting chiefly carex, iris, gale, dwarf 
willows, and a host of herbaceous plants. The cuttings found 
in the runways were chiefly rye-grass, carex, and iris. 
Microtus elymocetes Osgood. Montague Vole. 
This large vole was found to be abundant on Montague Island 
at Zaikof and» Hanning bays, at Montague and Graveyard Points, 
and on the numerous small islets in Stockdale Harbor—in fact 
wherever we touched the island. This species is especially 
common in the woods, living in holes beneath logs and the roots 
of conifers. The wide, deep runways are to be seen everywhere 
from the littoral zone to the upper limit of vegetation. There 
is perhaps not a square rod of ground on Montague Island and 
its adjacent islets that is without runways of this rodent. 
At Zaikof Bay runways were most abundant on the edges 
of the forest in beds of deer cabbage, the burrows being placed 
beneath tree trunks and logs. In these situations at various 
places in the runways considerable quantities of the petioles of 
deer cabbage were found, cut into lengths an inch or two lone 
and placed in irregular little heaps. In a few places the gnawed 
remains of skunk cabbage leaves were found in the runways. 
A few small mountain hemlocks were seen with the bark removed 
a few inches above the ground, evidently the work of this rodent 
during winters of heavy snowfall. 
In the vicinity of Hanning Bay, elymocetes was found very 
abundant in the fields of rye-grass near camp. Great numbers 
