Amazon Black Howler vs Large-Neck Clam

Alouatta nigerrima compared with Mya arenaria

Key Differences

• Amazon Black Howler is Least Concern while Large-Neck Clam is Vulnerable.

Taxonomic Classification

Rank	Amazon Black Howler	Large-Neck Clam
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Mammalia (哺乳類)	Bivalvia (二枚貝)
Order	Primates (サル目)	Myida (Myida)
Family	Atelidae	Myidae
Genus	Alouatta	Mya
Species	Alouatta nigerrima	Mya arenaria

Evolutionary Relationship

Amazon Black Howler and Large-Neck Clam share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Amazon Black Howler

LC — Least Concern

Large-Neck Clam

VU — Vulnerable

Physical Characteristics

Attribute	Amazon Black Howler	Large-Neck Clam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Amazon Black Howler

The Amazon Black Howler (Alouatta nigerrima) is a species in the genus Alouatta. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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。