St. James' shell vs Sumatran orangutan

Pecten maximus compared with Pongo abelii

Key Differences

• St. James' shell is Least Concern while Sumatran orangutan is Critically Endangered.

Taxonomic Classification

Rank	St. James' shell	Sumatran orangutan
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Pectinida (Pectinida)	Primates (Primates)
Family	Pectinidae	Hominidae (Great Apes)
Genus	Pecten	Pongo (Orangutans)
Species	Pecten maximus	Pongo abelii

Evolutionary Relationship

St. James' shell and Sumatran orangutan share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

St. James' shell

LC — Least Concern

Sumatran orangutan

CR — Critically Endangered

Physical Characteristics

Attribute	St. James' shell	Sumatran orangutan
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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).

Sumatran orangutan

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.