Common Bithynia vs Oustalet's Red Colobus

Bithynia tentaculata compared with Piliocolobus oustaleti

Key Differences

• Common Bithynia is Least Concern while Oustalet's Red Colobus is Vulnerable.

Taxonomic Classification

Rank	Common Bithynia	Oustalet's Red Colobus
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Primates (Primates)
Family	Bithyniidae	Cercopithecidae (Old World Monkeys)
Genus	Bithynia	Piliocolobus
Species	Bithynia tentaculata	Piliocolobus oustaleti

Evolutionary Relationship

Common Bithynia and Oustalet's Red Colobus share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Bithynia

LC — Least Concern

Oustalet's Red Colobus

VU — Vulnerable

Physical Characteristics

Attribute	Common Bithynia	Oustalet's Red Colobus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Bithynia

Habitat

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

Range

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

Oustalet's Red Colobus

Habitat

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.