i. Mustela frenata neomexicana, ♀ ad., 36482, U. S. N. M., Tombstone, Arizona.

Plate 35. Photographs, retouched, of skulls in ventral view, of eight subspecies of Mustela frenata. Natural size.

a. Mustela frenata nevadensis, ♀ ad., 41503, M. V. Z., type, 3 mi. E Baker, Nevada.

b. Mustela frenata washingtoni, ♀ sad., 81953, U. S. N. M., Trout Lake, Wash.

c. Mustela frenata altifrontalis, ♀ ad., 392, coll. of Alex Walker, Blaine, Oregon.

d. Mustela frenata oregonensis, ♀ ad., 244520, U. S. Nat. Mus., Medford, Oregon.

e. Mustela frenata munda, ♀ ad., 91764, U. S. N. M., Point Reyes, California.

f. Mustela frenata munda, ♀ ad., 19723, M. V. Z., Point Arena, California.

g. Mustela frenata xanthogenys, ♀ ad., 2626, coll. of W. E. Snyder, Selma, Calif.