Arlequín de Arthur vs Colombian Stubfoot Toad

Atelopus arthuri compared with Atelopus minutulus

Taxonomic Classification

Rank	Arlequín de Arthur	Colombian Stubfoot Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Amphibia (Amphibians)	Amphibia (Amphibians)
Order same	Anura (Frogs & Toads)	Anura (Frogs & Toads)
Family same	Bufonidae	Bufonidae
Genus same	Atelopus	Atelopus
Species	Atelopus arthuri	Atelopus minutulus

Evolutionary Relationship

Arlequín de Arthur and Colombian Stubfoot Toad share a common ancestor at the Genus level: Atelopus.

Conservation Status

Arlequín de Arthur

CR — Critically Endangered

Colombian Stubfoot Toad

CR — Critically Endangered

Physical Characteristics

Attribute	Arlequín de Arthur	Colombian Stubfoot Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arlequín de Arthur

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Colombian Stubfoot Toad

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Arlequín de Arthur

Arthur's stubfoot toad (Atelopus arthuri) is a species in the genus Atelopus. It is classified as Critically Endangered on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

Colombian Stubfoot Toad

<em>Atelopus minutulus</em>, the Colombian stubfoot toad, is a critically endangered harlequin toad in the family Bufonidae, endemic to Colombia. This species is assessed as Critically Endangered by the IUCN, placing it among the most threatened amphibians in the world. Like many members of the genus <em>Atelopus</em>, it has suffered severe population declines attributed primarily to the lethal chytrid fungus <em>Batrachochytrium dendrobatidis</em>, compounded by habitat destruction and climate change. The species occupies tropical and subtropical moist broadleaf forests, dry broadleaf forests, and grassland and savanna habitats, suggesting broader ecological tolerance than many congeners. Stubfoot toads are characteristically diurnal and are often associated with stream margins in humid forest environments, where males typically call from rocks or vegetation near fast-flowing water. Their bright colouration in some <em>Atelopus</em> species signals toxicity, though the extent of toxicity in <em>A. minutulus</em> is not well established. Conservation efforts for Colombian stubfoot toads include captive breeding programmes and disease-resistance research. Biological traits of this species remain poorly documented in the scientific literature.