Alder's necklace shell vs Atlantic Ancula

Euspira nitida compared with Ancula gibbosa

Taxonomic Classification

Rank	Alder's necklace shell	Atlantic Ancula
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order	Littorinimorpha (Littorinimorpha)	Nudibranchia (Nudibranchia)
Family	Naticidae	Goniodorididae
Genus	Euspira	Ancula
Species	Euspira nitida	Ancula gibbosa

Evolutionary Relationship

Alder's necklace shell and Atlantic Ancula share a common ancestor at the Class level: Gastropoda. (Gastropoda)

Conservation Status

Alder's necklace shell

LC — Least Concern

Atlantic Ancula

LC — Least Concern

Physical Characteristics

Attribute	Alder's necklace shell	Atlantic Ancula
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder's necklace shell

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Atlantic Ancula

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

Alder's necklace shell

The Alder's necklace shell (Euspira nitida) is a species in the genus Euspira. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Atlantic Ancula

The Atlantic Ancula (Ancula gibbosa) is a species in the genus Ancula. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden