Common Seahorse vs Napo Spiny-rat

Hippocampus kuda compared with Proechimys quadruplicatus

Key Differences

• Common Seahorse is Vulnerable while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Common Seahorse	Napo Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Mammalia (Mammals)
Order	Perciformes (Perch-like Fish)	Rodentia (Rodents)
Family	Pomacentridae (Clownfish & Damselfish)	Echimyidae
Genus	Amphiprion (Clownfish)	Proechimys
Species	Hippocampus kuda	Proechimys quadruplicatus

Evolutionary Relationship

Common Seahorse and Napo Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Common Seahorse	Napo Spiny-rat
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.

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Common Seahorse

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