Common Seahorse vs Ray

Hippocampus kuda compared with Bathyraja schroederi

Key Differences

• Common Seahorse is Vulnerable while Ray is Least Concern.

Taxonomic Classification

Rank	Common Seahorse	Ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Actinopterygii (Ray-finned Fish)	Elasmobranchii
Order	Perciformes (ペルカ目)	Rajiformes (ガンギエイ目)
Family	Pomacentridae (Clownfish & Damselfish)	Arhynchobatidae
Genus	Amphiprion (Clownfish)	Bathyraja
Species	Hippocampus kuda	Bathyraja schroederi

Evolutionary Relationship

Common Seahorse and Ray share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Ray

LC — Least Concern

Physical Characteristics

Attribute	Common Seahorse	Ray
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.

Ray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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。