Chestnut dunnart vs Common Bithynia

Sminthopsis archeri compared with Bithynia tentaculata

Key Differences

• Chestnut dunnart is Data Deficient while Common Bithynia is Least Concern.

Taxonomic Classification

Rank	Chestnut dunnart	Common Bithynia
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Mammalia (哺乳類)	Gastropoda (腹足綱)
Order	Dasyuromorphia (フクロネコ目)	Littorinimorpha (タマキビガイ下目)
Family	Dasyuridae	Bithyniidae
Genus	Sminthopsis	Bithynia
Species	Sminthopsis archeri	Bithynia tentaculata

Evolutionary Relationship

Chestnut dunnart and Common Bithynia share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Chestnut dunnart

DD — Data Deficient

Common Bithynia

LC — Least Concern

Physical Characteristics

Attribute	Chestnut dunnart	Common Bithynia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut dunnart

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Bithynia

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Chestnut dunnart

The Chestnut dunnart (Sminthopsis archeri) is a species in the genus Sminthopsis. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Common Bithynia

The common bithynia (<em>Bithynia tentaculata</em>) is a freshwater gastropod snail belonging to the family Bithyniidae. It is classified as Least Concern on the IUCN Red List and has been recorded across terrestrial and aquatic habitats in Belgium, Denmark, Norway, Sweden, and the United States. <em>Bithynia tentaculata</em> typically inhabits slow-moving or still freshwater environments such as lakes, ponds, canals, and rivers, often on muddy or sandy substrates where organic material is abundant. The species has a distinctive operculum that seals the shell opening, providing protection against desiccation and predators. It typically feeds by grazing on algae, detritus, and biofilms on submerged surfaces. The common bithynia serves as an intermediate host for several trematode parasites, making it ecologically significant in freshwater food webs and parasite life cycles. Biological traits of this species remain poorly documented in the scientific literature.