Hooded seal vs thin-necked bladderworm

Cystophora cristata compared with Taenia hydatigena

Key Differences

• Hooded seal is Endangered while thin-necked bladderworm is Not Evaluated.

Taxonomic Classification

Rank	Hooded seal	thin-necked bladderworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Platyhelminthes (Platyhelminthes)
Class	Mammalia (Mammals)	Cestoda (Cestoda)
Order	Pinnipedia (Seals & Sea Lions)	Cyclophyllidea (Cyclophyllidea)
Family	Phocidae (True Seals)	Taeniidae
Genus	Cystophora	Taenia
Species	Cystophora cristata	Taenia hydatigena

Evolutionary Relationship

Hooded seal and thin-necked bladderworm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Hooded seal

EN — Endangered

thin-necked bladderworm

NE — Not Evaluated

Physical Characteristics

Attribute	Hooded seal	thin-necked bladderworm
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.

thin-necked bladderworm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇵🇹 Portugal