common grey sea slug vs Spring Brittlestem

Aeolidia papillosa compared with Psathyrella spadiceogrisea

Taxonomic Classification

Rank	common grey sea slug	Spring Brittlestem
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Mollusca (มอลลัสกา)	Basidiomycota (Club Fungi)
Class	Gastropoda (ชั้นแกสโทรโพดา)	Agaricomycetes (Mushrooms)
Order	Nudibranchia (ทากทะเล)	Agaricales (Gilled Mushrooms)
Family	Aeolidiidae	Psathyrellaceae
Genus	Aeolidia	Psathyrella
Species	Aeolidia papillosa	Psathyrella spadiceogrisea

Conservation Status

common grey sea slug

LC — Least Concern

Spring Brittlestem

LC — Least Concern

Physical Characteristics

Attribute	common grey sea slug	Spring Brittlestem
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.

Spring Brittlestem

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

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

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.