common grey sea slug vs Raia mosaico

Aeolidia papillosa compared with Raja undulata

Key Differences

• common grey sea slug is Least Concern while Raia mosaico is Endangered.

Taxonomic Classification

Rank	common grey sea slug	Raia mosaico
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (moluscos)	Chordata (cordados)
Class	Gastropoda (gastrópodos)	Elasmobranchii
Order	Nudibranchia (Nudibranchia)	Rajiformes (Rajiformes)
Family	Aeolidiidae	Rajidae
Genus	Aeolidia	Raja
Species	Aeolidia papillosa	Raja undulata

Evolutionary Relationship

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

Conservation Status

common grey sea slug

LC — Least Concern

Raia mosaico

EN — Endangered

Physical Characteristics

Attribute	common grey sea slug	Raia mosaico
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Raia mosaico

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Belgium. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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 1 countries:

🇧🇪 Belgium