blunt tellin vs Flat Periwinkle

Arcopagia crassa compared with Littorina obtusata

Key Differences

• blunt tellin is Vulnerable while Flat Periwinkle is Least Concern.

Taxonomic Classification

Rank	blunt tellin	Flat Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class	Bivalvia (Bivalvia)	Gastropoda (Gastropoda)
Order	Cardiida (Cardiida)	Littorinimorpha (Littorinimorpha)
Family	Tellinidae	Littorinidae
Genus	Arcopagia	Littorina
Species	Arcopagia crassa	Littorina obtusata

Evolutionary Relationship

blunt tellin and Flat Periwinkle share a common ancestor at the Phylum level: Mollusca. (Mollusks)

Conservation Status

blunt tellin

VU — Vulnerable

Flat Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	blunt tellin	Flat Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

blunt tellin

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Flat Periwinkle

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

blunt tellin

The Blunt tellin (Arcopagia crassa) is a species in the genus Arcopagia. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 4 countries:

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