Pohnpei tree snail vs small tortoiseshell

Partula emersoni compared with Aglais urticae

Key Differences

• Pohnpei tree snail is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Pohnpei tree snail	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Gastropoda (Gastropoda)	Insecta (Insects)
Order	Stylommatophora (Stylommatophora)	Lepidoptera (Butterflies & Moths)
Family	Partulidae	Nymphalidae (Brush-footed Butterflies)
Genus	Partula	Aglais
Species	Partula emersoni	Aglais urticae

Evolutionary Relationship

Pohnpei tree snail and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Pohnpei tree snail

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Pohnpei tree snail	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pohnpei tree snail

Habitat

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

Range

Found in Norway. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway