Humboldt's Squirrel Monkey vs St. James' shell

Saimiri cassiquiarensis compared with Pecten maximus

Key Differences

• Humboldt's Squirrel Monkey is Near Threatened while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Humboldt's Squirrel Monkey	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	Cebidae	Pectinidae
Genus	Saimiri	Pecten
Species	Saimiri cassiquiarensis	Pecten maximus

Evolutionary Relationship

Humboldt's Squirrel Monkey and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Humboldt's Squirrel Monkey

NT — Near Threatened

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Humboldt's Squirrel Monkey	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Humboldt's Squirrel Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.