Dark Roller vs Foca de Casco

Ancylis upupana compared with Cystophora cristata

Key Differences

• Dark Roller is Near Threatened while Foca de Casco is Endangered.

Taxonomic Classification

Rank	Dark Roller	Foca de Casco
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (artrópodos)	Chordata (cordados)
Class	Insecta (insecto)	Mammalia (mamíferos)
Order	Lepidoptera (Butterflies & Moths)	Pinnipedia (Seals & Sea Lions)
Family	Tortricidae	Phocidae (True Seals)
Genus	Ancylis	Cystophora
Species	Ancylis upupana	Cystophora cristata

Evolutionary Relationship

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

Conservation Status

Dark Roller

NT — Near Threatened

Foca de Casco

EN — Endangered

Physical Characteristics

Attribute	Dark Roller	Foca de Casco
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dark Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇳🇴 Norway