Crowned Sifaka vs St. James' shell

Propithecus coronatus compared with Pecten maximus

Key Differences

• Crowned Sifaka is Critically Endangered while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Crowned Sifaka	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	Indriidae	Pectinidae
Genus	Propithecus	Pecten
Species	Propithecus coronatus	Pecten maximus

Evolutionary Relationship

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

Conservation Status

Crowned Sifaka

CR — Critically Endangered

St. James' shell

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Crowned Sifaka

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.