Common Seahorse vs hydroid

Hippocampus kuda compared with Obelia longissima

Key Differences

• Common Seahorse is Vulnerable while hydroid is Not Evaluated.

Taxonomic Classification

Rank	Common Seahorse	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 longissima

Evolutionary Relationship

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

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seahorse	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.

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).

Common Seahorse

The common seahorse is found in tropical and temperate waters. Males carry and deliver the babies.

Shared Countries

Both species can be found in 1 countries:

🇦🇺 Australia