Common Seahorse vs Long-eared Hedgehog

Hippocampus kuda compared with Hemiechinus auritus

Key Differences

• Common Seahorse is Vulnerable while Long-eared Hedgehog is Least Concern.

Taxonomic Classification

Rank	Common Seahorse	Long-eared Hedgehog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Mammalia (Mammals)
Order	Perciformes (Perch-like Fish)	Erinaceomorpha (Erinaceomorpha)
Family	Pomacentridae (Clownfish & Damselfish)	Erinaceidae
Genus	Amphiprion (Clownfish)	Hemiechinus
Species	Hippocampus kuda	Hemiechinus auritus

Evolutionary Relationship

Common Seahorse and Long-eared Hedgehog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Long-eared Hedgehog

LC — Least Concern

Physical Characteristics

Attribute	Common Seahorse	Long-eared Hedgehog
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.

Long-eared Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Cyprus, Spain, and Ukraine.

Common Seahorse

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