Common Seahorse vs Leatherback Sea Turtle

Hippocampus kuda compared with Dermochelys coriacea

Key Differences

• Leatherback Sea Turtle is 50000.0x heavier than Common Seahorse.
• Leatherback Sea Turtle lives longer (50 years vs 5 years).

Taxonomic Classification

Rank	Common Seahorse	Leatherback Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Reptilia (Reptiles)
Order	Perciformes (Perch-like Fish)	Testudines (Turtles & Tortoises)
Family	Pomacentridae (Clownfish & Damselfish)	Cheloniidae (Sea Turtles)
Genus	Amphiprion (Clownfish)	Chelonia (Green Sea Turtles)
Species	Hippocampus kuda	Dermochelys coriacea

Evolutionary Relationship

Common Seahorse and Leatherback Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Seahorse	Leatherback Sea Turtle
Diet	Carnivore	Carnivore
Average Lifespan	5 years	50 years
Average Length	17 cm	2.0 m
Average Weight	10 g	500.0 kg

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.

Leatherback Sea Turtle

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 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Seahorse

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

Leatherback Sea Turtle

The leatherback is the largest living turtle and the fourth-heaviest reptile. Unlike other turtles, it has a soft, leathery shell.

Shared Countries

Both species can be found in 1 countries:

🇮🇩 Indonesia