g. Mustela erminea invicta, ♂ ad., 90759, Mus. Vert. Zoöl., Pilot Creek, Idaho.
h. Mustela erminea alascensis, ♂ ad., 74665, Mus. Vert. Zoöl., Windham, Alaska.
i. Mustela erminea salva, ♂ ad., 74641, M. V. Z., Mole Harbor, Admiralty Id., Alaska.
j. Mustela erminea initis, ♂ ad., 289, Mus. Vert. Zoöl., Saook Bay, Alaska.
Plate 5. Photos, retouched, of skulls of 9 subspecies of Mustela erminea, × 1.
a. Mustela erminea initis, ♂ ad., 289, Mus. Vert. Zoöl., Saook Bay, Alaska.
b. Mustela erminea celenda, ♂ ad., 1053, Los Angeles Mus., Craig, Alaska.
c. Mustela erminea seclusa, ♂ ad., 31232, M. V. Z., Port Santa Cruz, Alaska.
d. Mustela erminea haidarum, ♂ ad., 230777, U. S. N. M., Graham Island, B. C.