The hornyhead chub (Nocomis biguttatus) is a small species of minnow in the family Cyprinidae of order Cypriniformes.

In 1952, hornyhead chubs were documented to occur in the Big Sioux River drainage, but the exact location is unknown.

The hornyhead chub has not been documented in the Big Sioux River drainage since the finding in 1952, and is likely extirpated from this watershed.

They can be found from New York west into the Dakotas with isolated populations in the Platte and Colorado River Systems, and north from Manitoba and south into Kentucky.

There are hornyhead chubs in Georgia below Chattahoochee Forest National Fish Hatchery on Rock Creek and Toccoa River in Suches,GA.

Animal food items for the young include: rotifers, cladocerans, copepods, chironomids, and aquatic insect larvae.

Older hornyhead chubs are known to consume: clams, snails, crayfish, worms, aquatic insect larvae, and fish.

[7] Globally, the status of the hornyhead chub is secure, but it is considered Critically Imperiled in Wyoming, Kansas, and Pennsylvania, and Possibly or Presumed Extirpated in Colorado and Nebraska.

Currently, The Nature Conservancy has assigned the hornyhead chub a national ranking of G5[8] suggesting that the species’ existence is globally secure and of least concern (LC).