Herrington Fingernailclam vs Eisbär

Sphaerium occidentale compared with Ursus maritimus

Key Differences

• Herrington Fingernailclam is Least Concern while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Herrington Fingernailclam	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Mollusca (Weichtiere)	Chordata (Chordatiere)
Class	Bivalvia (Muscheln)	Mammalia (Säugetiere)
Order	Sphaeriida (Sphaeriida)	Carnivora (Raubtiere)
Family	Sphaeriidae	Ursidae (Bears)
Genus	Sphaerium	Ursus (Bears)
Species	Sphaerium occidentale	Ursus maritimus

Evolutionary Relationship

Herrington Fingernailclam and Eisbär share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Herrington Fingernailclam

LC — Least Concern

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Herrington Fingernailclam	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Herrington Fingernailclam

Habitat

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

Range

Distributed across Norway and United States.

Eisbär

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Eisbär

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway