Author: (Cope, 1875)
FBname: Bluntnose shiner
Comments: Inhabits the main channels of the Rio Grande and Pecos River usually over sand or gravel.  With two subspecies:  <i>N. s. simus</i> known from Rio Grande above El Paso, Texas, but now possibly extinct; <i>N. s. pecosensis</i> known only in the Pecos River, New Mexico, recognized as a threatened subspecies (Ref. 5723).