brittlestar vs Prototype quillwort

Amphiura filiformis compared with Isoetes prototypus

Key Differences

• brittlestar is Least Concern while Prototype quillwort is Near Threatened.

Taxonomic Classification

Rank	brittlestar	Prototype quillwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Echinodermata (Echinoderms)	Tracheophyta
Class	Ophiuroidea (Ophiuroidea)	Lycopodiopsida (Lycopodiopsida)
Order	Amphilepidida (Amphilepidida)	Isoetales (Isoetales)
Family	Amphiuridae	Isoetaceae
Genus	Amphiura	Isoetes
Species	Amphiura filiformis	Isoetes prototypus

Conservation Status

brittlestar

LC — Least Concern

Prototype quillwort

NT — Near Threatened

Physical Characteristics

Attribute	brittlestar	Prototype quillwort
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.

Prototype quillwort

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in Canada. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.