Carriker’s Speckled Tree-rat vs Chungan Sucker Frog

Pattonomys carrikeri compared with Amolops chunganensis

Key Differences

• Carriker’s Speckled Tree-rat is Data Deficient while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Carriker’s Speckled Tree-rat	Chungan Sucker Frog
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Amphibia (สัตว์สะเทินน้ำสะเทินบก)
Order	Rodentia (อันดับสัตว์ฟันแทะ)	Anura (อันดับกบ)
Family	Echimyidae	Ranidae
Genus	Pattonomys	Amolops
Species	Pattonomys carrikeri	Amolops chunganensis

Evolutionary Relationship

Carriker’s Speckled Tree-rat and Chungan Sucker Frog share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Carriker’s Speckled Tree-rat

DD — Data Deficient

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Carriker’s Speckled Tree-rat	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Carriker’s Speckled Tree-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

Chungan Sucker Frog

Habitat

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

Carriker’s Speckled Tree-rat

The Carriker’s Speckled Tree-rat (Pattonomys carrikeri) is a species in the genus Pattonomys. It is currently classified as Data Deficient on the IUCN Red List. 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.