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Cui-ui

Carp & Sucker

Cui-ui

Chasmistes cujus

FreshwaterCatostomidaeEndangered

About

The Cui-ui is a critically endangered suckerfish endemic to Pyramid Lake in Nevada. It has a streamlined body, a flattened head, and a fleshy lower lip adapted for bottom feeding. Cui-ui are long-lived, with some individuals living for over 40 years.

Average size
Up to 25 inches, 5 pounds
Colors
Dark olive-brown to black dorsally, fading to silver or white on the sides and belly
Diet
Primarily bottom-dwelling invertebrates and algae
Region
Nevada (Pyramid Lake)