Common Seahorse vs Ruby-Crowned Kinglet

Hippocampus kuda compared with Regulus calendula

Key Differences

• Common Seahorse is Vulnerable while Ruby-Crowned Kinglet is Least Concern.

Taxonomic Classification

Rank	Common Seahorse	Ruby-Crowned Kinglet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Aves (Birds)
Order	Perciformes (Perch-like Fish)	Passeriformes (Songbirds)
Family	Pomacentridae (Clownfish & Damselfish)	Regulidae
Genus	Amphiprion (Clownfish)	Regulus
Species	Hippocampus kuda	Regulus calendula

Evolutionary Relationship

Common Seahorse and Ruby-Crowned Kinglet share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Ruby-Crowned Kinglet

LC — Least Concern

Physical Characteristics

Attribute	Common Seahorse	Ruby-Crowned Kinglet
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.

Ruby-Crowned Kinglet

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Norway and United States.

Common Seahorse

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