オオミノウミウシ vs tiny risso snail

Aeolidia papillosa compared with Rissoa parva

Taxonomic Classification

Rank	オオミノウミウシ	tiny risso snail
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Mollusca (軟体動物)	Mollusca (軟体動物)
Class same	Gastropoda (腹足綱)	Gastropoda (腹足綱)
Order	Nudibranchia (裸鰓目)	Littorinimorpha (タマキビガイ下目)
Family	Aeolidiidae	Rissoidae
Genus	Aeolidia	Rissoa
Species	Aeolidia papillosa	Rissoa parva

Evolutionary Relationship

オオミノウミウシ and tiny risso snail share a common ancestor at the Class level: Gastropoda. (腹足綱)

Conservation Status

オオミノウミウシ

LC — Least Concern

tiny risso snail

LC — Least Concern

Physical Characteristics

Attribute	オオミノウミウシ	tiny risso snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

オオミノウミウシ

Habitat

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

Range

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

tiny risso snail

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

オオミノウミウシ

<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