Common Seahorse vs Oak-Leaf Hydrangea

Hippocampus kuda compared with Hydrangea quercifolia

Key Differences

• Common Seahorse is Vulnerable while Oak-Leaf Hydrangea is Not Evaluated.

Taxonomic Classification

Rank	Common Seahorse	Oak-Leaf Hydrangea
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Actinopterygii (Ray-finned Fish)	Magnoliopsida (Dicots)
Order	Perciformes (Perch-like Fish)	Cornales (Cornales)
Family	Pomacentridae (Clownfish & Damselfish)	Hydrangeaceae
Genus	Amphiprion (Clownfish)	Hydrangea
Species	Hippocampus kuda	Hydrangea quercifolia

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Oak-Leaf Hydrangea

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seahorse	Oak-Leaf Hydrangea
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.

Oak-Leaf Hydrangea

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Brazil, Italy, and Norway.

Common Seahorse

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