Arkansas River Shiner (Notropis girardi) is a small (5 cm) minnow that has been extirpated from much of its range and currently only remains in an 818 km segment of the Canadian River in Oklahoma, Texas, and New Mexico, and may persist in the Cimarron River in Oklahoma and Kansas. It was also introduced in the Pecos River in New Mexico (this population is not included on the list of SGCN). They prefer shallow, cloudy channels of major streams and tend to congregate downstream of sand ridges. Spawning is associated with flooding from heavy summer rains.