Large False Serotine vs St. James' shell

Hesperoptenus tomesi compared with Pecten maximus

Key Differences

• Large False Serotine is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Large False Serotine	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	Vespertilionidae	Pectinidae
Genus	Hesperoptenus	Pecten
Species	Hesperoptenus tomesi	Pecten maximus

Evolutionary Relationship

Large False Serotine and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Large False Serotine

VU — Vulnerable

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Large False Serotine	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large False Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.