Bent-grass nematode vs Red-billed Duck

Anguina agrostis compared with Anas erythrorhyncha

Key Differences

• Bent-grass nematode is Not Evaluated while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Bent-grass nematode	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Nematoda (Roundworms)	Chordata (Chordates)
Class	Chromadorea (Chromadorea)	Aves (Birds)
Order	Rhabditida (Rhabditida)	Anseriformes (Anseriformes)
Family	Anguinidae	Anatidae
Genus	Anguina	Anas
Species	Anguina agrostis	Anas erythrorhyncha

Evolutionary Relationship

Bent-grass nematode and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bent-grass nematode

NE — Not Evaluated

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Bent-grass nematode	Red-billed Duck
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.

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

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.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.