Common Seahorse vs

Hippocampus kuda compared with Cryptomonas pyrenoidifera

Key Differences

• Common Seahorse is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Common Seahorse
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Cryptophyta
Class	Actinopterygii (Ray-finned Fish)	Cryptophyceae (Cryptophyceae)
Order	Perciformes (Perch-like Fish)	Cryptomonadales (Cryptomonadales)
Family	Pomacentridae (Clownfish & Damselfish)	Cryptomonadaceae
Genus	Amphiprion (Clownfish)	Cryptomonas
Species	Hippocampus kuda	Cryptomonas pyrenoidifera

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seahorse
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.

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

Common Seahorse

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

Cryptomonas pyrenoidifera is a unicellular cryptomonad alga with a distinctive pyrenoid in each chloroplast, reflecting its species name. It inhabits freshwater lakes and ponds with moderate to high nutrient levels across temperate regions. This mixotrophic flagellate performs photosynthesis and can also ingest bacteria as supplemental nutrition.