FIGURE 5 in A new genus for the Blackfin Sucker, Thoburnia atripinnis (Cypriniformes: Catostomidae)

FIGURE 5. Ventral view of right pectoral fins of A. Thoburnia rhothoeca, AUM 61433, 94.7 mm SL and B. Vexillichthys n. gen. atripinnis, AUM 12812, 133.7 mm SL. Unbranched pectoral fin rays numbered with lowercase Roman numerals and first two branched rays numbered with Arabic numerals. The specimen in B is a large, nuptial female and pads are present on all four of the numbered rays with even some thickening on the third branched ray (numbers are approximately in the center of the pads). Photos by J.W. Armbruster. Scale = 1 cm.