brown disc snail vs Laysan Duck

Discus ruderatus compared with Anas laysanensis

Key Differences

• brown disc snail is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	brown disc snail	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Stylommatophora (Stylommatophora)	Anseriformes (Anseriformes)
Family	Discidae	Anatidae
Genus	Discus	Anas
Species	Discus ruderatus	Anas laysanensis

Evolutionary Relationship

brown disc snail and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brown disc snail

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	brown disc snail	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brown disc snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across France, Italy, Norway, and Sweden.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brown disc snail

The Brown Disc Snail (Discus ruderatus) is a species in the genus Discus. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Shared Countries

Both species can be found in 2 countries:

🇫🇷 France 🇳🇴 Norway