It is found from Mexico to northern Bolivia and southern Pará, Brazil.

C. s. inconspicuus occurs in northern Bolivia and central and eastern Peru.

It is endemic to eastern Peru and northern Bolivia at an altitude of approximately 3,000 meters.

They had one from northern Bolivia.

C. a. garleppi in the lowlands of northern Bolivia.

This species is native to southeastern Peru and northern Bolivia.

It is found in southern Peru and northern Bolivia, on the eastern slope of the Andes.

A new species is known from southeastern Peru and northern Bolivia.

The range proceeds 2400 km upstream into the headwaters of the Madeira in northern Bolivia.

It is native to northern Bolivia, where it has been found in seasonally flooded grassland.