_Specimens examined._---Total, 3: Rock Springs, 7400 ft., 69243,
69246, August 21 and 22, 1956; 4505 Denver Museum, within the Park
(exact locality not recorded), R.L. Landberg, July 27, 1931.
The specimens from Rock Springs were an adult male and a non-pregnant
adult female. Both were shot over the road in pinyon and juniper. The
specimens are referred to _M. c. stephensi_ on account of their
paleness, _stephensi_ being paler than _M. c. californicus_ from east of
Mesa Verde in Colorado.