Darkface arion vs Northern Dusky Slug

Arion distinctus compared with Arion fuscus

Key Differences

• Darkface arion is Least Concern while Northern Dusky Slug is Data Deficient.

Taxonomic Classification

Rank	Darkface arion	Northern Dusky Slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order same	Stylommatophora (Stylommatophora)	Stylommatophora (Stylommatophora)
Family same	Arionidae	Arionidae
Genus same	Arion	Arion
Species	Arion distinctus	Arion fuscus

Evolutionary Relationship

Darkface arion and Northern Dusky Slug share a common ancestor at the Genus level: Arion.

Conservation Status

Darkface arion

LC — Least Concern

Northern Dusky Slug

DD — Data Deficient

Physical Characteristics

Attribute	Darkface arion	Northern Dusky Slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Darkface arion

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (12 countries), North America (United States), and Oceania and the Pacific (New Zealand).

Northern Dusky Slug

Habitat

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

Range

Found across Europe (7 countries).

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇫🇷 France 🇮🇹 Italy 🇳🇴 Norway 🇸🇪 Sweden