Gray-bellied Night Monkey vs St. James' shell

Aotus lemurinus compared with Pecten maximus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night 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	Aotidae	Pectinidae
Genus	Aotus	Pecten
Species	Aotus lemurinus	Pecten maximus

Evolutionary Relationship

Gray-bellied Night Monkey and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable 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.