Brittle Bladderfern vs Common Seahorse

Cystopteris tenuis compared with Hippocampus kuda

Key Differences

Brittle Bladderfern is Not Evaluated while Common Seahorse is Vulnerable.

Taxonomic Classification

Rank	Brittle Bladderfern	Common Seahorse
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Actinopterygii (Ray-finned Fish)
Order	Polypodiales (Polypodiales)	Perciformes (Perch-like Fish)
Family	Cystopteridaceae	Pomacentridae (Clownfish & Damselfish)
Genus	Cystopteris	Amphiprion (Clownfish)
Species	Cystopteris tenuis	Hippocampus kuda

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Brittle Bladderfern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Canada and United States.

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.

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.