Atlantic Ancula vs Shelled Slug

Ancula gibbosa compared with Testacella haliotidea

Key Differences

• Atlantic Ancula is Least Concern while Shelled Slug is Data Deficient.

Taxonomic Classification

Rank	Atlantic Ancula	Shelled Slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order	Nudibranchia (Nudibranchia)	Stylommatophora (Stylommatophora)
Family	Goniodorididae	Testacellidae
Genus	Ancula	Testacella
Species	Ancula gibbosa	Testacella haliotidea

Evolutionary Relationship

Atlantic Ancula and Shelled Slug share a common ancestor at the Class level: Gastropoda. (Gastropoda)

Conservation Status

Atlantic Ancula

LC — Least Concern

Shelled Slug

DD — Data Deficient

Physical Characteristics

Attribute	Atlantic Ancula	Shelled Slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Ancula

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

Shelled Slug

Habitat

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

Range

Widely distributed across Europe (9 countries), North America (United States), and Oceania and the Pacific (New Zealand).

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 1 countries:

🇸🇪 Sweden