| Cyprinella alvarezdelvillari|
Cyprinella, Cyprinidae, Beautiful shiner
Tepehuan shiner Wikipedia
The Tepehuan shiner (Cyprinella alvarezdelvillari) is a species of cyprinid fish endemic to Mexico. It was described as a new species from a stream in the headwaters of Nazas River in Arroyo del Péñon Blanco, upstream from Peñón Blanco, Durango. The specific name honors Dr. José Alvarez del Villar, "founder of modern Mexican ichthyology".
Tepehuan shiner is a small species that grows to 4.4 cm (1.7 in) standard length, but is usually smaller, less than 3.6 cm (1.4 in) SL. It was most often collected from flowing water warmer than 29 °C (84 °F).