vs common grey sea slug

Baeomyces placophyllus compared with Aeolidia papillosa

Key Differences

is Endangered while common grey sea slug is Least Concern.

Taxonomic Classification

Rank		common grey sea slug
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Mollusca (Mollusks)
Class	Lecanoromycetes (Lecanoromycetes)	Gastropoda (Gastropoda)
Order	Baeomycetales (Baeomycetales)	Nudibranchia (Nudibranchia)
Family	Baeomycetaceae	Aeolidiidae
Genus	Baeomyces	Aeolidia
Species	Baeomyces placophyllus	Aeolidia papillosa

Conservation Status

EN — Endangered

common grey sea slug

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Colombia, Denmark, Norway, Sweden, and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Baeomyces placophyllus is a crustose lichen with a thick, squamulose thallus bearing distinctive, unbranched podetia topped with pale, flesh-colored apothecia. It inhabits bare, acidic mineral soils in open heathland, moorland, and alpine environments in temperate and boreal Europe. This lichen is considered endangered due to habitat loss from soil stabilization and grassland improvement.

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.