Foca de Casco vs Marbled Orbweaver

Cystophora cristata compared with Araneus marmoreus

Key Differences

• Foca de Casco is Endangered while Marbled Orbweaver is Least Concern.

Taxonomic Classification

Rank	Foca de Casco	Marbled Orbweaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópodos)
Class	Mammalia (mamíferos)	Arachnida (arácnidos)
Order	Pinnipedia (Seals & Sea Lions)	Araneae (araña)
Family	Phocidae (True Seals)	Araneidae
Genus	Cystophora	Araneus
Species	Cystophora cristata	Araneus marmoreus

Evolutionary Relationship

Foca de Casco and Marbled Orbweaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Foca de Casco

EN — Endangered

Marbled Orbweaver

LC — Least Concern

Physical Characteristics

Attribute	Foca de Casco	Marbled Orbweaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Foca de Casco

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, and Portugal. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Marbled Orbweaver

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇳🇴 Norway