Arrow-head tree snail vs Brook-Side Alder

Partula sagitta compared with Alnus serrulata

Key Differences

• Arrow-head tree snail is Extinct while Brook-Side Alder is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	Brook-Side Alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Gastropoda (Gastropoda)	Magnoliopsida (Dicots)
Order	Stylommatophora (Stylommatophora)	Fagales (Beeches & Oaks)
Family	Partulidae	Betulaceae
Genus	Partula	Alnus
Species	Partula sagitta	Alnus serrulata

Conservation Status

Arrow-head tree snail

EX — Extinct

Brook-Side Alder

LC — Least Concern

Physical Characteristics

Attribute	Arrow-head tree snail	Brook-Side Alder
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.

Brook-Side Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada and United States.

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.

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.