The smooth-sided toad or spotted toad (Rhaebo guttatus), formerly known as Bufo guttatus, is a species of toad in the family Bufonidae. It is found in the Amazonian Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela, as well as the Guianas (French Guiana, Guyana, and Suriname). Specimens from southern Peru, Bolivia, and Brazil might represent Rhaebo ecuadorensis described in 2012. Description Males growth to about snout–vent length. Females are larger, at up to , possibly even , in snout–vent length. The dorsal color is cream colored or very light brown to reddish brown. The belly is a darker shade. The species has a characteristically prominent preocular ridge that is present even in juveniles. The smooth sided toad secretes a toxin from a gland behind their eyes known as a bufotoxin, it has been known to cause heart failure in humans if ingested. This toxin is the toad's main line of defense against predators. Habitat and conservation Its natural habitats are tropical moist lowland forests, in particular mature gallery forests. It occurs on the ground or in deep leaf-litter on the forest floor. It is locally threatened by habitat loss. References Rhaebo Amphibians of Bolivia Amphibians of Brazil Amphibians of Colombia Amphibians of Ecuador Amphibians of French Guiana Amphibians of Guyana Amphibians of Peru Amphibians of Suriname Amphibians of Venezuela Taxonomy articles created by Polbot Amphibians described in 1799