Broadback cuttlefish vs Common Seahorse

Sepia savignyi compared with Hippocampus kuda

Key Differences

• Broadback cuttlefish is Data Deficient while Common Seahorse is Vulnerable.

Taxonomic Classification

Rank	Broadback cuttlefish	Common Seahorse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Actinopterygii (Ray-finned Fish)
Order	Sepiida (Sepiida)	Perciformes (Perch-like Fish)
Family	Sepiidae	Pomacentridae (Clownfish & Damselfish)
Genus	Sepia	Amphiprion (Clownfish)
Species	Sepia savignyi	Hippocampus kuda

Evolutionary Relationship

Broadback cuttlefish and Common Seahorse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Broadback cuttlefish

DD — Data Deficient

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

Attribute	Broadback cuttlefish	Common Seahorse
Diet	—	Carnivore
Average Lifespan	—	5 years
Average Length	—	17 cm
Average Weight	—	10 g

Habitat & Geographic Range

Broadback cuttlefish

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.

Broadback cuttlefish

The Broadback cuttlefish (Sepia savignyi) is a species in the genus Sepia. It is currently classified as Data Deficient on the IUCN Red List.

Common Seahorse

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