This species occurs along the main trunk of the Amazon River from Manaus to eastern Ecuador, including Colombia and Peru. Although Frost (2002) records this species as spanning from the "Amazon river region from Ecuador to Manaus, Brazil", there have been no specific localities provided for eastern Ecuador.
Habitat and Ecology
It lives in old growth and old second growth Tropical rainforest (See discussion by Hoogmoed, 1986). It reproduces explosively in small temporary pools.
It is very common.
Habitat destruction and degradation are threats to this species.
It occurs in protected areas.
Hoogmoed (1990) noted that this species was referred to erroneously as Rhinella dapsilis by Zimmerman and Bogart (1988), who removed it from the synonymy of Rhinella margaritifera (referred to as Bufo typhonius). The diagnostic differences between this form and geographically proximate members of the Rhinella margaritifera group are not well documented.
Luis A. Coloma, Santiago Ron, Claude Gascon, Marinus Hoogmoed 2004. Rhinella proboscidea. In: IUCN 2014