a bat flea vs common grey sea slug

Ischnopsyllus intermedius compared with Aeolidia papillosa

Key Differences

• a bat flea is Not Evaluated while common grey sea slug is Least Concern.

Taxonomic Classification

Rank	a bat flea	common grey sea slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Siphonaptera (Siphonaptera)	Nudibranchia (Nudibranchia)
Family	Ischnopsyllidae	Aeolidiidae
Genus	Ischnopsyllus	Aeolidia
Species	Ischnopsyllus intermedius	Aeolidia papillosa

Evolutionary Relationship

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

Conservation Status

a bat flea

NE — Not Evaluated

common grey sea slug

LC — Least Concern

Physical Characteristics

Attribute	a bat flea	common grey sea slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

a bat flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Portugal, 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.

a bat flea

The a bat flea (Ischnopsyllus intermedius) is a species in the genus Ischnopsyllus. It is not yet evaluated on the IUCN Red List. It is found across Denmark, Norway, Portugal, and Sweden, inhabiting diverse 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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden