Large-Neck Clam vs エゾオオノガイ

Mya arenaria compared with Mya truncata

Taxonomic Classification

Rank	Large-Neck Clam	エゾオオノガイ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Mollusca (軟体動物)	Mollusca (軟体動物)
Class same	Bivalvia (二枚貝)	Bivalvia (二枚貝)
Order same	Myida (Myida)	Myida (Myida)
Family same	Myidae	Myidae
Genus same	Mya	Mya
Species	Mya arenaria	Mya truncata

Evolutionary Relationship

Large-Neck Clam and エゾオオノガイ share a common ancestor at the Genus level: Mya.

Conservation Status

Large-Neck Clam

VU — Vulnerable

エゾオオノガイ

VU — Vulnerable

Physical Characteristics

Attribute	Large-Neck Clam	エゾオオノガイ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large-Neck Clam

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Georgia, Turkey), Europe (22 countries), and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

エゾオオノガイ

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Large-Neck Clam

ミゾハマグリ（Mya arenaria）はIUCNレッドリストで危急（VU）に分類されている。野生での絶滅リスクが高く、個体数が減少し、生息地への圧力が増加している。

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden