Chirostoma bartoni

Chirostoma bartoni, the Alberca silverside, was a species of neotropical silverside endemic to the Lerma River basin of Mexico. Typical adult specimens were approximately 7.1 cm in length. The Alberca silverside was found only in the Alberca Caldera, Guanajuato, Mexico. It became extinct when the caldera temporarily dried up in August 2006.

Chirostoma bartoni

Chirostoma bartoni, the Alberca silverside, was a species of neotropical silverside endemic to the Lerma River basin of Mexico. Typical adult specimens were approximately 7.1 cm in length. The Alberca silverside was found only in the Alberca Caldera, Guanajuato, Mexico. It became extinct when the caldera temporarily dried up in August 2006.