Northern Pig-tailed Macaque vs St. James' shell

Macaca leonina compared with Pecten maximus

Key Differences

• Northern Pig-tailed Macaque is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Northern Pig-tailed Macaque	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Primates (Primates)	Pectinida (Pectinida)
Family	Cercopithecidae (Old World Monkeys)	Pectinidae
Genus	Macaca	Pecten
Species	Macaca leonina	Pecten maximus

Evolutionary Relationship

Northern Pig-tailed Macaque and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Northern Pig-tailed Macaque

VU — Vulnerable

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Northern Pig-tailed Macaque	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Northern Pig-tailed Macaque

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

St. James' shell

Habitat

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

Range

Widely distributed across Asia (China), Europe (8 countries), and South America (Chile).

St. James' shell

St. James' shell (Pecten maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.