Foca de Casco vs Variable Abalone

Cystophora cristata compared with Haliotis varia

Key Differences

• Foca de Casco is Endangered while Variable Abalone is Least Concern.

Taxonomic Classification

Rank	Foca de Casco	Variable Abalone
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Mollusca (moluscos)
Class	Mammalia (mamíferos)	Gastropoda (gastrópodos)
Order	Pinnipedia (Seals & Sea Lions)	Lepetellida (Lepetellida)
Family	Phocidae (True Seals)	Haliotidae
Genus	Cystophora	Haliotis
Species	Cystophora cristata	Haliotis varia

Evolutionary Relationship

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

Conservation Status

Foca de Casco

EN — Endangered

Variable Abalone

LC — Least Concern

Physical Characteristics

Attribute	Foca de Casco	Variable Abalone
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.

Variable Abalone

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and deserts and xeric shrublands within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Sri Lanka and Taiwan.