Autumn Snowflake vs Flat Periwinkle

Acis autumnalis compared with Littorina obtusata

Taxonomic Classification

Rank	Autumn Snowflake	Flat Periwinkle
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Liliopsida (Monocots)	Gastropoda (Gastropoda)
Order	Asparagales (Asparagales)	Littorinimorpha (Littorinimorpha)
Family	Amaryllidaceae	Littorinidae
Genus	Acis	Littorina
Species	Acis autumnalis	Littorina obtusata

Conservation Status

Autumn Snowflake

LC — Least Concern

Flat Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Autumn Snowflake	Flat Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Autumn Snowflake

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Found in Norway.

Flat Periwinkle

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Autumn Snowflake

The Autumn Snowflake (Acis autumnalis) is a species in the genus Acis. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.