Clown Frog vs Maracay Harlequin Frog

Atelopus varius compared with Atelopus vogli

Key Differences

• Clown Frog is Critically Endangered while Maracay Harlequin Frog is Extinct.

Taxonomic Classification

Rank	Clown Frog	Maracay Harlequin Frog
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Amphibia (両生類)	Amphibia (両生類)
Order same	Anura (カエル)	Anura (カエル)
Family same	Bufonidae	Bufonidae
Genus same	Atelopus	Atelopus
Species	Atelopus varius	Atelopus vogli

Evolutionary Relationship

Clown Frog and Maracay Harlequin Frog share a common ancestor at the Genus level: Atelopus.

Conservation Status

Clown Frog

CR — Critically Endangered

Maracay Harlequin Frog

EX — Extinct

Physical Characteristics

Attribute	Clown Frog	Maracay Harlequin Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clown Frog

Habitat

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

Maracay Harlequin Frog

Habitat

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

Range

Found in Venezuela.

Clown Frog

The clown frog (Atelopus varius), also known as the harlequin frog or variable harlequin toad, is a small, vibrantly colored true toad in the family Bufonidae native to the premontane and montane rainforests of Costa Rica and Panama. Adults display bold black-and-yellow or black-and-orange aposematic patterns that warn predators of their skin toxins. Males typically measure 27–39 mm in snout-vent length and females slightly larger. The species inhabits fast-flowing streams in humid highland forests at elevations generally between 200 and 1,800 m, where breeding occurs in riparian zones. Atelopus varius was once common throughout its range but has suffered catastrophic population declines since the 1980s, primarily due to the chytrid fungal pathogen Batrachochytrium dendrobatidis (Bd), which has driven mass mortality events in amphibians globally. Additional threats include habitat loss from deforestation and agricultural expansion. The species is listed as Critically Endangered by the IUCN. Conservation programs involving captive breeding and disease-resistant population management are underway in Costa Rica and Panama in collaboration with international zoos.