Disappearing Soil Slug vs Dusky arion

Arion occultus compared with Arion subfuscus

Taxonomic Classification

Rank	Disappearing Soil Slug	Dusky arion
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 occultus	Arion subfuscus

Evolutionary Relationship

Disappearing Soil Slug and Dusky arion share a common ancestor at the Genus level: Arion.

Conservation Status

Disappearing Soil Slug

DD — Data Deficient

Dusky arion

DD — Data Deficient

Physical Characteristics

Attribute	Disappearing Soil Slug	Dusky arion
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Disappearing Soil Slug

Habitat

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

Range

Found in Ireland.

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).