Bilberry Roller vs Common Periwinkle

Ancylis myrtillana compared with Littorina littorea

Taxonomic Classification

Rank	Bilberry Roller	Common Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Lepidoptera (Butterflies & Moths)	Littorinimorpha (Littorinimorpha)
Family	Tortricidae	Littorinidae
Genus	Ancylis	Littorina
Species	Ancylis myrtillana	Littorina littorea

Evolutionary Relationship

Bilberry Roller and Common Periwinkle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bilberry Roller

LC — Least Concern

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Bilberry Roller	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bilberry Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Common Periwinkle

Habitat

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

Range

Found across Europe (4 countries) and North America (Canada, United States).

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.

Common Periwinkle

Common Periwinkle (Littorina littorea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden