Chungan Sucker Frog vs Limestone Rainfrog

Amolops chunganensis compared with Craugastor psephosypharus

Key Differences

• Chungan Sucker Frog is Least Concern while Limestone Rainfrog is Near Threatened.

Taxonomic Classification

Rank	Chungan Sucker Frog	Limestone Rainfrog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Amphibia (Amphibians)	Amphibia (Amphibians)
Order same	Anura (Frogs & Toads)	Anura (Frogs & Toads)
Family	Ranidae	Craugastoridae
Genus	Amolops	Craugastor
Species	Amolops chunganensis	Craugastor psephosypharus

Evolutionary Relationship

Chungan Sucker Frog and Limestone Rainfrog share a common ancestor at the Order level: Anura. (Frogs & Toads)

Conservation Status

Chungan Sucker Frog

LC — Least Concern

Limestone Rainfrog

NT — Near Threatened

Physical Characteristics

Attribute	Chungan Sucker Frog	Limestone Rainfrog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chungan Sucker Frog

Habitat

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

Limestone Rainfrog

Habitat

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

Range

Found in Mexico. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Chungan Sucker Frog

The Chungan Sucker Frog (Amolops chunganensis) is a Least Concern torrent frog in the family Ranidae, endemic to central China, particularly associated with the mountains of Chongqing (formerly Chungan County, from which the species name derives) and surrounding areas. The genus Amolops, commonly known as torrent frogs or cascade frogs, is adapted for life in and around fast-flowing mountain streams, with expanded toe pads and sucker-like discs that allow clinging to wet, smooth rock surfaces in high-velocity water. Breeding occurs in stream environments, where males call from boulders at the stream edge and larvae develop in oxygenated torrent pools with specialized mouthparts for adhering to rock substrates. A. chunganensis inhabits subtropical and montane forests at elevations ranging from low to mid altitudes in Sichuan and Chongqing. The IUCN assesses this species as Least Concern, reflecting a relatively wide distribution within suitable stream habitats across central China. However, it faces ongoing pressure from water quality degradation, dam construction and stream modification, deforestation, and pollution from agricultural and urban runoff. Amolops frogs are sensitive to siltation and chemical contamination of breeding streams.