Chungan Sucker Frog vs Gray-shanked Douc Langur

Amolops chunganensis compared with Pygathrix cinerea

Key Differences

• Chungan Sucker Frog is Least Concern while Gray-shanked Douc Langur is Critically Endangered.

Taxonomic Classification

Rank	Chungan Sucker Frog	Gray-shanked Douc Langur
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Amphibia (Amphibien)	Mammalia (Säugetiere)
Order	Anura (Froschlurche)	Primates (Primaten)
Family	Ranidae	Cercopithecidae (Old World Monkeys)
Genus	Amolops	Pygathrix
Species	Amolops chunganensis	Pygathrix cinerea

Evolutionary Relationship

Chungan Sucker Frog and Gray-shanked Douc Langur share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Chungan Sucker Frog

LC — Least Concern

Gray-shanked Douc Langur

CR — Critically Endangered

Physical Characteristics

Attribute	Chungan Sucker Frog	Gray-shanked Douc Langur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chungan Sucker Frog

Habitat

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

Gray-shanked Douc Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.