Brindled Flat-body vs Chuanbei Toothed Toad

Agonopterix arenella compared with Oreolalax chuanbeiensis

Key Differences

• Brindled Flat-body is Least Concern while Chuanbei Toothed Toad is Endangered.

Taxonomic Classification

Rank	Brindled Flat-body	Chuanbei Toothed Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Amphibia (Amphibians)
Order	Lepidoptera (Butterflies & Moths)	Anura (Frogs & Toads)
Family	Depressariidae	Megophryidae
Genus	Agonopterix	Oreolalax
Species	Agonopterix arenella	Oreolalax chuanbeiensis

Evolutionary Relationship

Brindled Flat-body and Chuanbei Toothed Toad share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brindled Flat-body

LC — Least Concern

Chuanbei Toothed Toad

EN — Endangered

Physical Characteristics

Attribute	Brindled Flat-body	Chuanbei Toothed Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brindled Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Chuanbei Toothed Toad

Habitat

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

Brindled Flat-body

The Brindled Flat-body (Agonopterix arenella) is a species in the genus Agonopterix. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Chuanbei Toothed Toad

The Chuanbei Toothed Toad (Oreolalax chuanbeiensis) is an Endangered amphibian endemic to the mountains of northern Sichuan Province in southwestern China. It belongs to the family Megophryidae, a diverse group of litter frogs and toad-like amphibians that is particularly species-rich in the eastern Himalayan and southwestern Chinese highlands. The species name chuanbeiensis refers to northern Sichuan (Chuanbei), reflecting its highly restricted geographic range. Like other Oreolalax species, the Chuanbei Toothed Toad is associated with cold, fast-flowing mountain streams, where larvae develop in torrent conditions that require specialized morphological adaptations including oral suckers. Adults are terrestrial outside the breeding season, sheltering in leaf litter and rocky crevices in montane forest. The IUCN has assessed this species as Endangered due to its small known range, ongoing habitat degradation from logging, agriculture, and infrastructure development in mountain areas, and the impacts of chytridiomycosis (amphibian chytrid fungal disease) which threatens Asian megophryid frogs. Limited survey data mean that the species' full extent of occurrence and population size are poorly constrained.