Black river stingray vs Chungan Sucker Frog

Potamotrygon motoro compared with Amolops chunganensis

Key Differences

• Black river stingray is Data Deficient while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Black river stingray	Chungan Sucker Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Amphibia (Amphibians)
Order	Myliobatiformes (Myliobatiformes)	Anura (Frogs & Toads)
Family	Potamotrygonidae	Ranidae
Genus	Potamotrygon	Amolops
Species	Potamotrygon motoro	Amolops chunganensis

Evolutionary Relationship

Black river stingray and Chungan Sucker Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black river stingray

DD — Data Deficient

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Black river stingray	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black river stingray

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Distributed across Brazil, Colombia, Ecuador, Singapore, and Venezuela.

Chungan Sucker Frog

Habitat

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

Black river stingray

The Black river stingray (Potamotrygon motoro) is a species in the genus Potamotrygon. It is currently classified as Data Deficient on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

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.