Black Teatfish vs Chungan Sucker Frog

Holothuria nobilis compared with Amolops chunganensis

Key Differences

• Black Teatfish is Endangered while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Black Teatfish	Chungan Sucker Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Chordata (Chordates)
Class	Holothuroidea (Holothuroidea)	Amphibia (Amphibians)
Order	Holothuriida (Holothuriida)	Anura (Frogs & Toads)
Family	Holothuriidae	Ranidae
Genus	Holothuria	Amolops
Species	Holothuria nobilis	Amolops chunganensis

Evolutionary Relationship

Black Teatfish and Chungan Sucker Frog share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black Teatfish

EN — Endangered

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Black Teatfish	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Teatfish

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chungan Sucker Frog

Habitat

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

Black Teatfish

The Black Teatfish (Holothuria nobilis) is a species in the genus Holothuria. It is currently classified as Endangered on the IUCN Red List. Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.