Prosopis velutina 1,213
-----
Total 3,026

Five species represented, in addition to those of _Aristida_. Largest
storage of _Prosopis_ found. Mound was near a good-sized mesquite tree.
No storage in subsidiary burrows.


DEN 21.

January 31, 1920. Male trapped here night of January 29, and suckling
female trapped at same place and same opening of mound, night of January
30. Burrow excavated to secure young, which were found in special nest
chamber.

Species stored. Grams.

Aristida spp. (intimate mixture of undetermined species) 1,115
Eschscholtzia mexicana (from spring of 1919) 48
Opuntia (prickly pear, seeds only, no fruits) 10
-----
Total 1,173

Three species represented. Prickly pear hitherto found as fruits only.


DEN 22.

January 1, 1921. Rather good grass growth here in summer of 1920. Burrow