arrow-head scale vs brittlestar

Unaspis yanonensis compared with Amphiura filiformis

Key Differences

• arrow-head scale is Not Evaluated while brittlestar is Least Concern.

Taxonomic Classification

Rank	arrow-head scale	brittlestar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Echinodermata (Echinoderms)
Class	Insecta (Insects)	Ophiuroidea (Ophiuroidea)
Order	Hemiptera (Hemiptera)	Amphilepidida (Amphilepidida)
Family	Diaspididae	Amphiuridae
Genus	Unaspis	Amphiura
Species	Unaspis yanonensis	Amphiura filiformis

Evolutionary Relationship

arrow-head scale and brittlestar share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-head scale

NE — Not Evaluated

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	arrow-head scale	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow-head scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Asia (Japan, Taiwan) and Europe (6 countries).

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

arrow-head scale

The Arrow-head scale, Unaspis yanonensis, is a species. Typically found in virtually all terrestrial and freshwater habitats.

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.