Brown Diving Beetle vs St. James' shell

Agabus brunneus compared with Pecten maximus

Key Differences

• Brown Diving Beetle is Extinct while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Brown Diving 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	Dytiscidae	Pectinidae
Genus	Agabus	Pecten
Species	Agabus brunneus	Pecten maximus

Evolutionary Relationship

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

Conservation Status

Brown Diving Beetle

EX — Extinct

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Brown Diving Beetle	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Diving Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Sweden.

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).

Brown Diving Beetle

The Brown Diving Beetle (Agabus brunneus) is a species in the genus Agabus. It is currently classified as Extinct 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 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden