Beech Tarcrust vs Chungan Sucker Frog

Biscogniauxia nummularia compared with Amolops chunganensis

Key Differences

• Beech Tarcrust is Data Deficient while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Beech Tarcrust	Chungan Sucker Frog
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Sordariomycetes (Sordariomycetes)	Amphibia (Amphibians)
Order	Xylariales (Xylariales)	Anura (Frogs & Toads)
Family	Graphostromataceae	Ranidae
Genus	Biscogniauxia	Amolops
Species	Biscogniauxia nummularia	Amolops chunganensis

Conservation Status

Beech Tarcrust

DD — Data Deficient

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Beech Tarcrust	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beech Tarcrust

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), and South America (Brazil).

Chungan Sucker Frog

Habitat

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

Beech Tarcrust

The Beech Tarcrust (Biscogniauxia nummularia) is a species in the genus Biscogniauxia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

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.