hydroid vs sea thread hydroid

Obelia longissima compared with Obelia dichotoma

Taxonomic Classification

Rank	hydroid	sea thread hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Cnidaria (cnidários)	Cnidaria (cnidários)
Class same	Hydrozoa (Hydrozoa)	Hydrozoa (Hydrozoa)
Order same	Leptothecata (Leptothecata)	Leptothecata (Leptothecata)
Family same	Campanulariidae	Campanulariidae
Genus same	Obelia	Obelia
Species	Obelia longissima	Obelia dichotoma

Evolutionary Relationship

hydroid and sea thread hydroid share a common ancestor at the Genus level: Obelia.

Conservation Status

hydroid

NE — Not Evaluated

sea thread hydroid

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

hydroid

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina).

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).

Shared Countries

Both species can be found in 7 countries:

🇦🇷 Argentina 🇦🇺 Australia 🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States