Lesser Yellow-shouldered Bat vs St. James' shell

Sturnira nana compared with Pecten maximus

Key Differences

• Lesser Yellow-shouldered Bat is Endangered while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Lesser Yellow-shouldered Bat	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Chiroptera (Bats)	Pectinida (Pectinida)
Family	Phyllostomidae	Pectinidae
Genus	Sturnira	Pecten
Species	Sturnira nana	Pecten maximus

Evolutionary Relationship

Lesser Yellow-shouldered Bat and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Lesser Yellow-shouldered Bat

EN — Endangered

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Lesser Yellow-shouldered Bat	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as 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.