Arrow-head tree snail vs Bilberry Roller

Partula sagitta compared with Ancylis myrtillana

Key Differences

• Arrow-head tree snail is Extinct while Bilberry Roller is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	Bilberry Roller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Gastropoda (Gastropoda)	Insecta (Insects)
Order	Stylommatophora (Stylommatophora)	Lepidoptera (Butterflies & Moths)
Family	Partulidae	Tortricidae
Genus	Partula	Ancylis
Species	Partula sagitta	Ancylis myrtillana

Evolutionary Relationship

Arrow-head tree snail and Bilberry Roller share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arrow-head tree snail

EX — Extinct

Bilberry Roller

LC — Least Concern

Physical Characteristics

Attribute	Arrow-head tree snail	Bilberry Roller
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arrow-head tree snail

Habitat

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

Bilberry Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Arrow-head tree snail

The Arrow-head tree snail, Partula sagitta, is a species. It is currently assessed as extinct on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Bilberry Roller

The Bilberry Roller (Ancylis myrtillana) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.