Cui-ui
Chasmistes cujus
Also called cuiui
The cui-ui is an endangered sucker fish endemic to Pyramid Lake in Nevada. It is a large-bodied member of the sucker family that can live for several decades.
Cui-ui at a glance
- Scientific name
- Chasmistes cujus
- Typical size
- 12-24 inches, 2-8 lbs
- Water
- Freshwater
- Habitat
- Freshwater
- Rarity in the Fishdex™
- Mythic
Habitat
Found exclusively in Pyramid Lake, Nevada, and the lower Truckee River. This species is federally protected and fishing for cui-ui is prohibited. They spawn in the Truckee River during spring runs.
Catch one and it is yours
Log a cui-ui through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.
How the Fishdex™ worksCui-ui questions people ask
Cui-ui is Chasmistes cujus. Anglers also call it cuiui.
A typical cui-ui runs 12-24 inches, 2-8 lbs. Cobia records the length and weight of every cui-ui you log and keeps your personal best on its Fishdex entry.
Found exclusively in Pyramid Lake, Nevada, and the lower Truckee River. This species is federally protected and fishing for cui-ui is prohibited. They spawn in the Truckee River during spring runs. It is a fresh water species, filed under freshwater in the Fishdex.
Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.
Tomorrow morning starts tonight
Set your home water, pick a drive radius, and wake up to a plan.
Android coming soon
iPhone, iOS 17 or later. Setup takes about a minute.