Chestnut Coloured Click Beetle vs St. James' shell

Anostirus castaneus compared with Pecten maximus

Taxonomic Classification

Rank	Chestnut Coloured Click Beetle	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Coleoptera (Beetles)	Pectinida (Pectinida)
Family	Elateridae	Pectinidae
Genus	Anostirus	Pecten
Species	Anostirus castaneus	Pecten maximus

Evolutionary Relationship

Chestnut Coloured Click Beetle and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chestnut Coloured Click Beetle

LC — Least Concern

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Chestnut Coloured Click Beetle	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Coloured Click Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Switzerland.

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).

Chestnut Coloured Click Beetle

The Chestnut Coloured Click Beetle (Anostirus castaneus) is a species in the genus Anostirus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden