Cottontop Tamarin vs St. James' shell

Saguinus oedipus compared with Pecten maximus

Key Differences

• Cottontop Tamarin is Critically Endangered while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Cottontop Tamarin	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	Callitrichidae	Pectinidae
Genus	Saguinus	Pecten
Species	Saguinus oedipus	Pecten maximus

Evolutionary Relationship

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

Conservation Status

Cottontop Tamarin

CR — Critically Endangered

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Cottontop Tamarin	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cottontop Tamarin

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

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.