Alder's necklace shell vs Anderson's Salamander

Euspira nitida compared with Ambystoma andersoni

Key Differences

• Alder's necklace shell is Least Concern while Anderson's Salamander is Critically Endangered.

Taxonomic Classification

Rank	Alder's necklace shell	Anderson's Salamander
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Amphibia (Amphibians)
Order	Littorinimorpha (Littorinimorpha)	Caudata (Caudata)
Family	Naticidae	Ambystomatidae
Genus	Euspira	Ambystoma
Species	Euspira nitida	Ambystoma andersoni

Evolutionary Relationship

Alder's necklace shell and Anderson's Salamander share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alder's necklace shell

LC — Least Concern

Anderson's Salamander

CR — Critically Endangered

Physical Characteristics

Attribute	Alder's necklace shell	Anderson's Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder's necklace shell

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Anderson's Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

Alder's necklace shell

The Alder's necklace shell (Euspira nitida) is a species in the genus Euspira. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Anderson's Salamander

The Anderson's Salamander (Ambystoma andersoni) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo.