Arctic Fingernailclam vs Black Kauri

Sphaerium nitidum compared with Agathis atropurpurea

Key Differences

• Arctic Fingernailclam is Least Concern while Black Kauri is Near Threatened.

Taxonomic Classification

Rank	Arctic Fingernailclam	Black Kauri
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Sphaeriida (Sphaeriida)	Hymenoptera (Ants, Bees & Wasps)
Family	Sphaeriidae	Braconidae
Genus	Sphaerium	Agathis
Species	Sphaerium nitidum	Agathis atropurpurea

Evolutionary Relationship

Arctic Fingernailclam and Black Kauri share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic Fingernailclam

LC — Least Concern

Black Kauri

NT — Near Threatened

Physical Characteristics

Attribute	Arctic Fingernailclam	Black Kauri
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Fingernailclam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and United States.

Black Kauri

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Arctic Fingernailclam

The Arctic Fingernailclam (Sphaerium nitidum) is a species in the genus Sphaerium. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Black Kauri

The Black Kauri (Agathis atropurpurea) is a species in the genus Agathis. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.