Common Lazy Toad vs Nanjiang Toothed Toad

Oreolalax major compared with Oreolalax nanjiangensis

Key Differences

• Common Lazy Toad is Least Concern while Nanjiang Toothed Toad is Vulnerable.

Taxonomic Classification

Rank	Common Lazy Toad	Nanjiang Toothed Toad
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Amphibia (สัตว์สะเทินน้ำสะเทินบก)	Amphibia (สัตว์สะเทินน้ำสะเทินบก)
Order same	Anura (อันดับกบ)	Anura (อันดับกบ)
Family same	Megophryidae	Megophryidae
Genus same	Oreolalax	Oreolalax
Species	Oreolalax major	Oreolalax nanjiangensis

Evolutionary Relationship

Common Lazy Toad and Nanjiang Toothed Toad share a common ancestor at the Genus level: Oreolalax.

Conservation Status

Common Lazy Toad

LC — Least Concern

Nanjiang Toothed Toad

VU — Vulnerable

Physical Characteristics

Attribute	Common Lazy Toad	Nanjiang Toothed Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Lazy Toad

Habitat

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

Nanjiang Toothed Toad

Habitat

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

Common Lazy Toad

The Common Lazy Toad (<em>Oreolalax major</em>) is an amphibian in the family Megophryidae, classified as Least Concern on the IUCN Red List. The species typically inhabits freshwater habitats, moist forests, and wetlands, favoring cool, humid environments associated with mountain streams and adjacent riparian vegetation. As a member of the family Megophryidae, it is adapted to fast-flowing, clear mountain streams where larvae typically develop among leaf litter and gravel on the stream bed. The Common Lazy Toad is generally associated with the highland and montane zones of its range, relying on intact forest cover and unpolluted water bodies for reproduction and larval development. Its Least Concern status reflects an assessment of stable population trends, though like many amphibians it may be sensitive to changes in water quality, habitat loss, and emerging infectious diseases such as chytridiomycosis. Biological traits of this species remain poorly documented in the scientific literature.