Murray 1949/1 Eutamias amoenus Sept 9 Red Mt., 5300 ft., 14 mi S Hayfork, Trinity Co., Calif. in the morning. In the afternoon found another P in Ceanothus well out on an exposed slope. While out on the hillsides in Ceanothus, they frequently climb up and sit in the top of the brush in plain sight, or scoot about between clumps. The sonomae avoid showing themselves at any time. Amoenus will sit motionless until approached within 10 or 15 feet, then rush off to another brush clump. They may often be chased from clump to clump without showing much concern or making an effort to stay concealed. Again they differ from sonomae in the same habitat, which freeze at the base of a bush until one may almost reach out and touch them. When startled amoenus has a high pitched chatter which then settles into a note intermediate in pitch between the other two species. It varies in rate with the degree of excitement. Though the call is given when one is a good distance away or the chipmunk is concealed, by the time a good observing range is reached and it is located if in the open, not another sound is given. This silence is coupled with a freeze, often in an awkward position. If no further approach is made it may remain in that position for several minutes without a move. I have not yet heard a sound from one which has struck this