Amazonian manatee vs St. James' shell

Trichechus inunguis compared with Pecten maximus

Key Differences

• Amazonian manatee is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Amazonian manatee	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Sirenia (Sirenia)	Pectinida (Pectinida)
Family	Trichechidae	Pectinidae
Genus	Trichechus	Pecten
Species	Trichechus inunguis	Pecten maximus

Evolutionary Relationship

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

Conservation Status

Amazonian manatee

VU — Vulnerable

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Amazonian manatee	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian manatee

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. 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).

Amazonian manatee

The Amazonian manatee (Trichechus inunguis) is a species in the genus Trichechus. It is currently classified as Vulnerable on the IUCN Red List. 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.