Atlantic Ancula vs Dusky arion

Ancula gibbosa compared with Arion subfuscus

Key Differences

• Atlantic Ancula is Least Concern while Dusky arion is Data Deficient.

Taxonomic Classification

Rank	Atlantic Ancula	Dusky arion
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	Arionidae
Genus	Ancula	Arion
Species	Ancula gibbosa	Arion subfuscus

Evolutionary Relationship

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

Conservation Status

Atlantic Ancula

LC — Least Concern

Dusky arion

DD — Data Deficient

Physical Characteristics

Attribute	Atlantic Ancula	Dusky arion
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.

Dusky arion

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

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 2 countries:

🇳🇴 Norway 🇸🇪 Sweden