FIGURE 4 in A new genus for the Blackfin Sucker, Thoburnia atripinnis (Cypriniformes: Catostomidae)

FIGURE 4. Dorsal view of crania of A. Hypentelium nigricans, AUM 86410, 259.5 mm SL, B. Thoburnia rhothoecum, AUM 86411, and C. Vexillichthys n. gen. atripinnis, AUM 86412. 109.7 mm SL. DE—dermethmoid (lines are to a lateral lamina), F—frontal, FPF—frontoparietal fenestra, LE—lateral ethmoid (lines are to the base of the bone), and SOC—supraorbital crest (lines are to a lateral lamina). Photos by J.W. Armbruster. Scale = 1 cm.