This species is known from the Pacific coast of western Colombia in the Choco region, from close to the Ecuador border, north to the lower Magdalena River basin in Colombia, east to the Maracaibo Lake basin in Venezuela, and from Barinas and Táchira States in Venezuela. It occurs below 1,040m asl.
Habitat and Ecology
It is found in seasonal and moist tropical lowland forests, and has not so far been found outside forest. It is not known whether or not it can survive in degraded, open areas. Its breeding system is unknown.
No information is available on its abundance.
Deforestation as a result of expanding agriculture is a potential threat, but there is not enough information to confirm this.
It probably occurs in some protected areas in Colombia and Venezuela.
This is a poorly circumscribed species in need of taxonomic review (M. Wilkinson pers. comm.).
Enrique La Marca, John Lynch, Fernando Castro, Mark Wilkinson 2004. Caecilia subnigricans. In: IUCN 2013