Black Jackrabbit vs common freshwater nerite

Lepus insularis compared with Theodoxus fluviatilis

Key Differences

• Black Jackrabbit is Vulnerable while common freshwater nerite is Least Concern.

Taxonomic Classification

Rank	Black Jackrabbit	common freshwater nerite
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Lagomorpha (Rabbits & Hares)	Cycloneritida (Cycloneritida)
Family	Leporidae (Rabbits & Hares)	Neritidae
Genus	Lepus	Theodoxus
Species	Lepus insularis	Theodoxus fluviatilis

Evolutionary Relationship

Black Jackrabbit and common freshwater nerite share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black Jackrabbit

VU — Vulnerable

common freshwater nerite

LC — Least Concern

Physical Characteristics

Attribute	Black Jackrabbit	common freshwater nerite
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Jackrabbit

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

common freshwater nerite

Habitat

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

Range

Found across Europe (11 countries).

Black Jackrabbit

The Black Jackrabbit (Lepus insularis) is a species in the genus Lepus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems. Detailed ecological data for this species continues to be documented through ongoing taxonomic and conservation research.

common freshwater nerite

<em>Theodoxus fluviatilis</em>, commonly known as the common freshwater nerite, is a small aquatic gastropod mollusc belonging to the family Neritidae. This species is widely distributed across Europe, with documented occurrences in Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Latvia, Norway, and Sweden. It typically inhabits freshwater environments, including rivers, streams, and lakes, where it grazes on algae and biofilm on hard substrates such as rocks and submerged wood. The common freshwater nerite is assessed as Least Concern on conservation metrics, reflecting its broad distribution and relatively stable populations across much of its European range. Biological traits of this species remain poorly documented in the scientific literature. <em>Theodoxus fluviatilis</em> plays an ecological role as a grazer in freshwater benthic communities, contributing to the regulation of algal growth on hard surfaces. The species typically favors clean, well-oxygenated waters and can serve as an indicator of water quality in freshwater systems. Its distinctive small, dome-shaped shell with variable patterning makes it recognizable among freshwater invertebrates.