ARBOREAL SALAMANDER. Aneides lugubris lugubris (Hallowell)
length 6 inches or less. Head wedge-shaped, with bulging muscles
above and behind eye; teeth on margin of upper jaw prominent;
thirteen cross wise furrows (costal grooves) in skin on side of
body between fore and hind leg; skin everywhere smooth and soft.
Upper surface dark brown, usually with small round spots of
yellow; under surface plain commonly in Transition Zone near
McCarthy ranch, 3 miles east of Coulterville. Lives near or on
damp ground within or under logs, under stones, and in old wood
rats' nests. Usually solitary. The Arboreal Salamander, in the
Yosemite region, was found by us only on or close to the surface
of the ground. Elsewhere in its range the species is known to
inhabit damp cavities in oak trees. In the Sierras we found it
at but the one locality mentioned above, chiefly beneath logs
and stones in pastures and woodlands. Two adults were found in
the interior of a charred and slightly decayed yellow pine log
which was lying on a