Broad skate vs Common Bithynia

Amblyraja badia compared with Bithynia tentaculata

Taxonomic Classification

Rank	Broad skate	Common Bithynia
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum	Chordata (хордовые)	Mollusca (моллюски)
Class	Elasmobranchii	Gastropoda (брюхоногие)
Order	Rajiformes (скатообразные)	Littorinimorpha (Littorinimorpha)
Family	Rajidae	Bithyniidae
Genus	Amblyraja	Bithynia
Species	Amblyraja badia	Bithynia tentaculata

Evolutionary Relationship

Broad skate and Common Bithynia share a common ancestor at the Kingdom level: Animalia. (животные)

Conservation Status

Broad skate

LC — Least Concern

Common Bithynia

LC — Least Concern

Physical Characteristics

Attribute	Broad skate	Common Bithynia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broad skate

Common Bithynia

Habitat

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

Range

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

Broad skate

The Broad Skate (Amblyraja badia) is a species in the genus Amblyraja. It is currently classified as Least Concern on the IUCN Red List. This species is recognized for its ecological significance within its native range.

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.