_Specimens examined._--Total, 5: Rock Springs, 7400 ft., 69254, ad.
[Female], non-pregnant, August 23, 1956; Square Tower House,
6700 ft., 69255-69258, March, 1955.
The specimen from Rock Springs was taken in a net as noted in the
account of _Myotis evotis_. The specimens from Square Tower House were
obtained by D. Watson in a dimly lighted chamber formed by fracture in
the rocks at the bottom of the canyon wall, above the talus slope. The
bats were suspended from the wall of the chamber, which was at least six
feet wide and fifteen feet long.