Black roughscale catshark vs Chungan Sucker Frog

Apristurus melanoasper compared with Amolops chunganensis

Taxonomic Classification

Rank	Black roughscale catshark	Chungan Sucker Frog
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Chondrichthyes (Kıkırdaklı balıklar)	Amphibia (amfibiler)
Order	Carcharhiniformes (Ground Sharks)	Anura (Kuyruksuz kurbağalar)
Family	Scyliorhinidae	Ranidae
Genus	Apristurus	Amolops
Species	Apristurus melanoasper	Amolops chunganensis

Evolutionary Relationship

Black roughscale catshark and Chungan Sucker Frog share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

Black roughscale catshark

LC — Least Concern

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Black roughscale catshark	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black roughscale catshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Chungan Sucker Frog

Habitat

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

Black roughscale catshark

The Black roughscale catshark (Apristurus melanoasper) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.