Central Andes Oldfield Mouse vs Chungan Sucker Frog

Thomasomys contradictus compared with Amolops chunganensis

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Chungan Sucker Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Cricetidae	Ranidae
Genus	Thomasomys	Amolops
Species	Thomasomys contradictus	Amolops chunganensis

Evolutionary Relationship

Central Andes Oldfield Mouse and Chungan Sucker Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Chungan Sucker Frog

Habitat

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

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.

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.