Hooded seal vs Marbled Ghostshark

Cystophora cristata compared with Hydrolagus marmoratus

Key Differences

• Hooded seal is Endangered while Marbled Ghostshark is Least Concern.

Taxonomic Classification

Rank	Hooded seal	Marbled Ghostshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Holocephali (Holocephali)
Order	Pinnipedia (Seals & Sea Lions)	Chimaeriformes (Chimaeriformes)
Family	Phocidae (True Seals)	Chimaeridae
Genus	Cystophora	Hydrolagus
Species	Cystophora cristata	Hydrolagus marmoratus

Evolutionary Relationship

Hooded seal and Marbled Ghostshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hooded seal

EN — Endangered

Marbled Ghostshark

LC — Least Concern

Physical Characteristics

Attribute	Hooded seal	Marbled Ghostshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hooded seal

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 Ghostshark