Aztec Rail vs Chungan Sucker Frog

Rallus tenuirostris compared with Amolops chunganensis

Key Differences

• Aztec Rail is Near Threatened while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Aztec Rail	Chungan Sucker Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Gruiformes (Gruiformes)	Anura (Frogs & Toads)
Family	Rallidae	Ranidae
Genus	Rallus	Amolops
Species	Rallus tenuirostris	Amolops chunganensis

Evolutionary Relationship

Aztec Rail and Chungan Sucker Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Aztec Rail

NT — Near Threatened

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Aztec Rail	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aztec Rail

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

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

Chungan Sucker Frog

Habitat

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

Aztec Rail

The Aztec Rail (Rallus tenuirostris) is a species in the genus Rallus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.