brittlestar vs

Amphiura filiformis compared with Phacus hamelii

Key Differences

brittlestar is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	brittlestar
Kingdom	Animalia (Animals)	Protozoa (protozoa)
Phylum	Echinodermata (Echinoderms)	Euglenozoa (Euglenozoa)
Class	Ophiuroidea (Ophiuroidea)	Euglenoidea (Euglenoidea)
Order	Amphilepidida (Amphilepidida)	Euglenida (Euglenida)
Family	Amphiuridae	Phacidae
Genus	Amphiura	Phacus
Species	Amphiura filiformis	Phacus hamelii

Conservation Status

brittlestar

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Habitat

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

Range

Distributed across Brazil, Denmark, and Taiwan.

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Phacus hamelii is a unicellular, photosynthetic euglenoid alga with a flattened, asymmetric cell body containing chloroplasts and a distinctive posterior tail-like extension. It inhabits freshwater environments including ponds, ditches, and slow-moving water bodies rich in organic matter. Like other Phacus species, it uses a flagellum for locomotion and can perform both photosynthesis and heterotrophic feeding.