Arrow-head tree snail vs Pohnpei tree snail

Partula sagitta compared with Partula emersoni

Key Differences

• Arrow-head tree snail is Extinct while Pohnpei tree snail is Critically Endangered.

Taxonomic Classification

Rank	Arrow-head tree snail	Pohnpei tree snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order same	Stylommatophora (Stylommatophora)	Stylommatophora (Stylommatophora)
Family same	Partulidae	Partulidae
Genus same	Partula	Partula
Species	Partula sagitta	Partula emersoni

Evolutionary Relationship

Arrow-head tree snail and Pohnpei tree snail share a common ancestor at the Genus level: Partula.

Conservation Status

Arrow-head tree snail

EX — Extinct

Pohnpei tree snail

CR — Critically Endangered

Physical Characteristics

Attribute	Arrow-head tree snail	Pohnpei tree snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arrow-head tree snail

Habitat

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

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.

Arrow-head tree snail

The Arrow-head tree snail, Partula sagitta, is a species. It is currently assessed as extinct on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.