brittlestar vs

Amphiura filiformis compared with Chroomonas extensa

Key Differences

brittlestar is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	brittlestar
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Echinodermata (Echinoderms)	Cryptophyta
Class	Ophiuroidea (Ophiuroidea)	Cryptophyceae (Cryptophyceae)
Order	Amphilepidida (Amphilepidida)	Pyrenomonadales (Pyrenomonadales)
Family	Amphiuridae	Chroomonadaceae
Genus	Amphiura	Chroomonas
Species	Amphiura filiformis	Chroomonas extensa

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 Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Chroomonas extensa is a species of cryptophyte alga in the family Chroomonadaceae, documented from freshwater environments in Europe. The specific epithet extensa refers to an extended or elongated cell morphology relative to other Chroomonas species. Cell shape and proportions are important diagnostic characters within the genus Chroomonas, where species are distinguished by cell dimensions, color, flagellar arrangement, and the structure of the ejectosomes — coiled proteinaceous organelles unique to cryptophytes that can be discharged rapidly, perhaps for predator avoidance. Cryptophytes of the genus Chroomonas are important primary producers in freshwater phytoplankton communities, particularly in cold-water periods when they may contribute substantially to total algal biomass. They are also important food sources in microbial food webs, supporting populations of heterotrophic flagellates and ciliates that consume them and transfer energy to higher trophic levels. Chroomonas extensa has been recorded from European freshwater localities. Like other microalgal species, it has not been assessed by the IUCN under formal conservation criteria.