_Specimens examined._--Total, 8: Rock Springs, 7400 ft., 69242,
69244, 69245, 69247, 69248, August 21 to 23, 1956; Hospital, Park
Headquarters, MV 7886/507, [Male], July 12, 1939; Headquarters,
MV 7877/507, [Female], August 30, 1938; 4504 Denver Museum,
within the Park (exact locality not recorded), R.L. Landberg, July
27, 1931.
The specimens from Rock Springs are two adult males that were shot, and
one adult male, one adult female, and one young male that were netted
at the place described in the account of _Myotis evotis_. The three
adult males are near the average color of _M. s. melanorhinus_, and
distinctly darker than the _Myotis californicus_ from the Mesa Verde. In
the female the pelage is paler and brighter, and the ears and membranes
are darker, than in _M. californicus_.