Incilius aucoinae
family: Bufonidae
Species Description: O'Neill EM, Mendelson III JR 2002 Taxonomy of Costa Rican toads referred to Bufo melanochlorus Cope, with the description of a new species. J Herp 38:487-494

© 2013 Fabio Hidalgo (1 of 3)
Conservation Status (definitions)
IUCN (Red List) Status Least Concern (LC)
Other International Status None
National Status None
Regional Status None


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From the IUCN Red List Species Account:


Range Description

This species is known from 25-500 m asl in far north-western Panama and western Costa Rica, from the Golfo Dulce area, north to the Rio Baru near Dominical.

Habitat and Ecology

Adults seem to be restricted to forested habitats from tree plantations to primary forest, but reproduction can occur in highly degraded habitats (F. Bolaños pers. comm.). They breed in streams and rivers during the dry season (Mid-December to March), being uncommon but still reproductive at the end of the dry period (April) (Savage 2002, O'Neill and Mendelson 2004, F. Bolaños and G. Chaves pers. comm.). The breeding stream requirements appear to be a wide, low-gradient, gravel or rocky stream with small isolated pools with sun exposure.


It is a very abundant species (F. Bolaños and G. Chaves pers. comm. 2007). The Costa Rican sub-population is thought to be stable (G. Chaves pers. comm. 2015).

Population Trend


Major Threats

There appear to be no major threats to this adaptable species (F. Bolaños and G. Chaves pers. comm.).

Conservation Actions


Taxonomic Notes

This species was previously identified as Incilius melanochlorus (O'Neill and Mendelson 2004).


IUCN SSC Amphibian Specialist Group 2015. Incilius aucoinae. In: IUCN 2014


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