Description: A medium-sized (maximum length of 46 cm [18 in.]) fish
with a slender body, a slight hump on the dorsal surface behind the head, and small and deeply embedded scales (that may be absent). The caudal peduncle is long and narrow, and the tail fin is fairly long and deeply forked. The overall coloration is silvery with olive shading on the dorsum, and the mouth and fins may have yellow-orange coloration. The mouth is relatively large and trout-like.
Diet: Omnivorous. Feeds on invertebrates and algae. Larger individuals
also eat other fish.
Habitat: Creeks to large rivers. Deep runs and pools with slow to
moderate velocities, sandy bottoms, and in-stream cover.
Range: Found only in the Virgin River from Pah Tempe Springs (just above LaVerkin, Utah) south to the confluence with Halfway Wash.
Comments: Formerly referred to as a subspecies of the Roundtail Chub
(Gila robusta seminuda).
Special Remarks: Federally Listed as Endangered.