Large-Neck Clam vs MacConnell's Oryzomys

Mya arenaria compared with Euryoryzomys macconnelli

Key Differences

• Large-Neck Clam is Vulnerable while MacConnell's Oryzomys is Least Concern.

Taxonomic Classification

Rank	Large-Neck Clam	MacConnell's Oryzomys
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Myida (Myida)	Rodentia (Rodents)
Family	Myidae	Cricetidae
Genus	Mya	Euryoryzomys
Species	Mya arenaria	Euryoryzomys macconnelli

Evolutionary Relationship

Large-Neck Clam and MacConnell's Oryzomys share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Large-Neck Clam

VU — Vulnerable

MacConnell's Oryzomys

LC — Least Concern

Physical Characteristics

Attribute	Large-Neck Clam	MacConnell's Oryzomys
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.

MacConnell's Oryzomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Large-Neck Clam

Large-Neck Clam (Mya arenaria) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.