Quest 1948 Citellus leucurus 3 June 2 6 mi N San Jose del Cabo, 250 ft, Baja California 200 yds. south of camp. Most plentiful among the Prickley Pear but also extend up rocky hill among Pituaya dulce and Limboi. I have yet to hear any vocal utterance from these squirrels when they are approached. They are less timid when they are in the Prickley Pear, some watching me for quite a while at 20 feet and seemed reluctant to go down their holes (12 noon). Per- haps they are accustomed to being looked by the nearness of goats and cattle and have found the Prickley Pear protection ordinarily requiring no further steps. June 9 San Juan de la Serada, 1600 ft. W base Sierra Laguna, Baja Calif. One seen and obtained yesterday on boulders in rocky wash near camp (#338). Squirrel was shot about 1:30 P.M. and was a lactating female. This species seems quite scarce in this area.