Arrow-head tree snail vs California alder

Partula sagitta compared with Alnus rhombifolia

Key Differences

• Arrow-head tree snail is Extinct while California alder is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	California 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 rhombifolia

Conservation Status

Arrow-head tree snail

EX — Extinct

California alder

LC — Least Concern

Physical Characteristics

Attribute	Arrow-head tree snail	California 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.

California alder

Habitat

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

Range

Found in Canada.

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.

California alder

The California alder (Alnus rhombifolia) 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.