Common Seahorse vs Flag Iris

Hippocampus kuda compared with Iris pseudacorus

Key Differences

• Common Seahorse is Vulnerable while Flag Iris is Least Concern.

Taxonomic Classification

Rank	Common Seahorse	Flag Iris
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Actinopterygii (Ray-finned Fish)	Insecta (昆虫)
Order	Perciformes (ペルカ目)	Mantodea (カマキリ目)
Family	Pomacentridae (Clownfish & Damselfish)	Eremiaphilidae
Genus	Amphiprion (Clownfish)	Iris
Species	Hippocampus kuda	Iris pseudacorus

Evolutionary Relationship

Common Seahorse and Flag Iris share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Flag Iris

LC — Least Concern

Physical Characteristics

Attribute	Common Seahorse	Flag Iris
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.

Flag Iris

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (South Africa), Asia (India, Japan), Europe (7 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (4 countries).

Common Seahorse

タツノオトシゴ（Hippocampus kuda）は熱帯および温帯の海域に分布する。オスが子を育てて出産するという独特な繁殖形態で知られる。

Shared Countries

Both species can be found in 3 countries:

🇦🇺 Australia 🇮🇳 India 🇯🇵 Japan