Bull. U, S. F. C. 1889. — (To face page 42.) Jordan. Yellowstone Explorations. 
Plate VII. 
M,i 'MjV.yA’.Y 
Fig. 1. Gray Sucker (Catostomns grisenn). (See page 4(1.) 
Fig. 2. Red Horse Sucker ICatosfomus ardens). (See page 47 .) 
Fig. 3. The Dace (Rhhiichtinjs dulcin). 
(See page 4S.) 
Fig. 4. (Ayosia nubila). (See page 48. 
