DistributionRead full entry
Range DescriptionThis species is endemic to the Mexican Central-Occidental Plateau and is found only in certain parts of the Duero and Camécuaro rivers (Gutiérrez-Yurrita and Latournerié-Cervera 1999). The Duero River is 10 km long, whist the river Camécuaro is just 2 km long (Gutiérrez-Yurrita and Latournerié-Cervera 1999). The two rivers meet at Las Adjuntas (Gutiérrez-Yurrita and Latournerié-Cervera 1999). Furthermore, this species is known to occur in Lake Chapala, though samples were collected 40 to 50 years. This species is believed to have naturally disappeared from some locations, though these local extinctions may in fact be unnatural (M. López-Mejía, F. Alvarez. and C. Pedraza-Lara pers. comm. 2009). This species has an extent of occurrence (EOO) of approximately 2,300 km².