Enchson 1934 Thomomys bottae Bates Well, Pima Co., Ariz. Jan. 31, 1934. Took 6 individuals from 8 settings made, one untouched, one filled in. Rest one filled in and set two others. Mounds found under mesquite thickets along washes rarely in openings; although two sets of workings were found at the base of lava hills where vegetation of [illegible] predominated. Fresh mounds all found in vicinity of old mounds. Took one gopher from set that had been filled in. Bates Well Feb. 1, 1934. Took up two remaining settings, one gopher taken, other set 15 yds. from place where a gopher secured, probably same system. Setting from which traps taken on previous night filled in.