blunt tellin vs sea thread hydroid

Arcopagia crassa compared with Obelia dichotoma

Key Differences

• blunt tellin is Vulnerable while sea thread hydroid is Not Evaluated.

Taxonomic Classification

Rank	blunt tellin	sea thread hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Cnidaria (Cnidarians)
Class	Bivalvia (Bivalvia)	Hydrozoa (Hydrozoa)
Order	Cardiida (Cardiida)	Leptothecata (Leptothecata)
Family	Tellinidae	Campanulariidae
Genus	Arcopagia	Obelia
Species	Arcopagia crassa	Obelia dichotoma

Evolutionary Relationship

blunt tellin and sea thread hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

blunt tellin

VU — Vulnerable

sea thread hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	blunt tellin	sea thread hydroid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

blunt tellin

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

sea thread hydroid

Habitat

Native to Africa and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (South Africa), Europe (5 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

blunt tellin

The Blunt tellin (Arcopagia crassa) is a species in the genus Arcopagia. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden