blackneck vs common grey sea slug

Lygephila pastinum compared with Aeolidia papillosa

Taxonomic Classification

Rank	blackneck	common grey sea slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Lepidoptera (Butterflies & Moths)	Nudibranchia (Nudibranchia)
Family	Erebidae	Aeolidiidae
Genus	Lygephila	Aeolidia
Species	Lygephila pastinum	Aeolidia papillosa

Evolutionary Relationship

blackneck and common grey sea slug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

blackneck

LC — Least Concern

common grey sea slug

LC — Least Concern

Physical Characteristics

Attribute	blackneck	common grey sea slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

blackneck

Habitat

Inhabits tropical and subtropical dry broadleaf forests within the Afrotropic biogeographic realm.

Range

Distributed across Belgium, Cabo Verde, Denmark, Norway, and Sweden.

common grey sea slug

Habitat

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

Range

Distributed across Belgium, Chile, Denmark, Norway, and Sweden.

blackneck

The Blackneck (Lygephila pastinum) is a species in the genus Lygephila. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical dry broadleaf forests within the Afrotropic biogeographic realm.

common grey sea slug

<em>Aeolidia papillosa</em>, commonly known as the common grey sea slug, is a nudibranch mollusc belonging to the genus Aeolidia within the family Aeolidiidae. Despite the species name referencing terrestrial and aquatic habitats including forests and freshwater, <em>Aeolidia papillosa</em> is primarily a marine organism. Its range includes Belgium, Chile, Denmark, Norway, and Sweden, indicating a distribution across the North Atlantic and into South American waters. Common grey sea slug is assessed as Least Concern on the IUCN Red List. The species is typically found in intertidal and subtidal zones, where it preys on sea anemones and stores stinging cells from its prey in its dorsal cerata for defense. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden