Franciscana vs St. James' shell

Pontoporia blainvillei compared with Pecten maximus

Key Differences

• Franciscana is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Franciscana	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Cetacea (Whales & Dolphins)	Pectinida (Pectinida)
Family	Pontoporiidae	Pectinidae
Genus	Pontoporia	Pecten
Species	Pontoporia blainvillei	Pecten maximus

Evolutionary Relationship

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

Conservation Status

Franciscana

VU — Vulnerable

St. James' shell

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Franciscana

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.