Bent-grass nematode vs Chungan Sucker Frog

Anguina agrostis compared with Amolops chunganensis

Key Differences

• Bent-grass nematode is Not Evaluated while Chungan Sucker Frog is Least Concern.

Taxonomic Classification

Rank	Bent-grass nematode	Chungan Sucker Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Nematoda (Roundworms)	Chordata (Chordates)
Class	Chromadorea (Chromadorea)	Amphibia (Amphibians)
Order	Rhabditida (Rhabditida)	Anura (Frogs & Toads)
Family	Anguinidae	Ranidae
Genus	Anguina	Amolops
Species	Anguina agrostis	Amolops chunganensis

Evolutionary Relationship

Bent-grass nematode and Chungan Sucker Frog share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bent-grass nematode

NE — Not Evaluated

Chungan Sucker Frog

LC — Least Concern

Physical Characteristics

Attribute	Bent-grass nematode	Chungan Sucker Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bent-grass nematode

Habitat

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

Range

Distributed across China, Denmark, and United States.

Chungan Sucker Frog

Habitat

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

Bent-grass nematode

The Bent-grass nematode (Anguina agrostis) is a species in the genus Anguina. Native to Asia and Europe and North 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.