h. Mustela frenata nigriauris, ♀ ad., 3761, M. V. Z., San Francisco, California.
i. Mustela frenata neomexicana, ♀ ad., 36482, U. S. N. M., Tombstone, Arizona.
Plate 36. Photographs, retouched, of skulls in lateral view, of eight subspecies of Mustela frenata. Natural size.
a. Mustela frenata washingtoni, ♀ sad., 81953, U. S. N. M., Trout Lake, Wash.
b. Mustela frenata altifrontalis, ♀ ad., 392, coll. of Alex Walker, Blaine, Oregon.
c. Mustela frenata oregonensis, ♀ ad., 244520, U. S. N. M., Medford, Oregon.
d. Mustela frenata munda, ♀ ad., 91764, U. S. N. M., Point Reyes, California.
e. Mustela frenata munda, ♀ ad., 19723, Mus. Vert. Zoöl., Point Arena, Calif.
f. Mustela frenata xanthogenys, ♀ ad., 2626, coll. of W. E. Snyder, Selma, Calif.