Broken-barred Roller vs common grey sea slug

Ancylis unguicella compared with Aeolidia papillosa

Taxonomic Classification

Rank	Broken-barred Roller	common grey sea slug
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum	Arthropoda (членистоногие)	Mollusca (моллюски)
Class	Insecta (насекомые)	Gastropoda (брюхоногие)
Order	Lepidoptera (чешуекрылые)	Nudibranchia (голожаберные)
Family	Tortricidae	Aeolidiidae
Genus	Ancylis	Aeolidia
Species	Ancylis unguicella	Aeolidia papillosa

Evolutionary Relationship

Broken-barred Roller and common grey sea slug share a common ancestor at the Kingdom level: Animalia. (животные)

Conservation Status

Broken-barred Roller

LC — Least Concern

common grey sea slug

LC — Least Concern

Physical Characteristics

Attribute	Broken-barred Roller	common grey sea slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broken-barred Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Canada, 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.

Broken-barred Roller

The Broken-Barred Roller (Ancylis unguicella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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