Bull. U. 5. F. C. 1889. — (To face page 46.) Jordan, Yellowstone Explorations. 
Plate IX. 
Fig. 8. Mountain WhITEFISH (.Coregonus wilUawsoni, vav. cismmitaims). (See page 49.) 
Fig. 9. Mountain Whitefish (Coregonus miUi'amsoni, var. Cism.unta}i,ti,s). 
(Head of breeding male.) (See page 49.) 
