Common Seahorse vs tiny risso snail

Hippocampus kuda compared with Rissoa parva

Key Differences

• Common Seahorse is Vulnerable while tiny risso snail is Least Concern.

Taxonomic Classification

Rank	Common Seahorse	tiny risso snail
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Mollusca (軟体動物)
Class	Actinopterygii (Ray-finned Fish)	Gastropoda (腹足綱)
Order	Perciformes (ペルカ目)	Littorinimorpha (タマキビガイ下目)
Family	Pomacentridae (Clownfish & Damselfish)	Rissoidae
Genus	Amphiprion (Clownfish)	Rissoa
Species	Hippocampus kuda	Rissoa parva

Evolutionary Relationship

Common Seahorse and tiny risso snail share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

tiny risso snail

LC — Least Concern

Physical Characteristics

Attribute	Common Seahorse	tiny risso snail
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.

tiny risso snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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。