2901 Alburnops simus (Cope, 1875) Leuciscidae Minnows Pogonichthyinae Cypriniformes Teleostei Bluntnose shiner North America: upper Rio Grande (above El Paso, Texas), Texas and New Mexico and in the Pecos River, New Mexico, USA. Has disappeared over much of its former range, apparently due to reduced water levels in the Rio Grande system (Ref. 3881).