brown point snail vs Common Periwinkle

Acicula fusca compared with Littorina littorea

Key Differences

• brown point snail is Extinct while Common Periwinkle is Least Concern.

Taxonomic Classification

Rank	brown point snail	Common Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order	Architaenioglossa (Architaenioglossa)	Littorinimorpha (Littorinimorpha)
Family	Aciculidae	Littorinidae
Genus	Acicula	Littorina
Species	Acicula fusca	Littorina littorea

Evolutionary Relationship

brown point snail and Common Periwinkle share a common ancestor at the Class level: Gastropoda. (Gastropoda)

Conservation Status

brown point snail

EX — Extinct

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	brown point snail	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brown point snail

Habitat

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

Range

Distributed across Belgium and Norway.

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).

brown point snail

The Brown Point Snail (Acicula fusca) is a species in the genus Acicula. It is currently classified as Extinct on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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 2 countries:

🇧🇪 Belgium 🇳🇴 Norway