Common Seahorse vs sea thread hydroid

Hippocampus kuda compared with Obelia dichotoma

Key Differences

Common Seahorse is Vulnerable while sea thread hydroid is Not Evaluated.

Taxonomic Classification

Rank	Common Seahorse	sea thread hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Actinopterygii (Ray-finned Fish)	Hydrozoa (Hydrozoa)
Order	Perciformes (Perch-like Fish)	Leptothecata (Leptothecata)
Family	Pomacentridae (Clownfish & Damselfish)	Campanulariidae
Genus	Amphiprion (Clownfish)	Obelia
Species	Hippocampus kuda	Obelia dichotoma

Evolutionary Relationship

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

View Kingdom: Animalia

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

sea thread hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seahorse	sea thread hydroid
Diet	Carnivore	—
Average Lifespan	5 years	—
Average Length	17 cm	—
Average Weight	10 g	—

Habitat & Geographic Range

Common Seahorse

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, India, Indonesia, Japan, and Philippines. 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).