arrow-head scale vs Polynesian rat

Unaspis yanonensis compared with Rattus exulans

Key Differences

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

Taxonomic Classification

Rank	arrow-head scale	Polynesian rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Hemiptera (Hemiptera)	Rodentia (Rodents)
Family	Diaspididae	Muridae (Mice & Rats)
Genus	Unaspis	Rattus
Species	Unaspis yanonensis	Rattus exulans

Evolutionary Relationship

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

Conservation Status

arrow-head scale

NE — Not Evaluated

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	arrow-head scale	Polynesian rat
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).

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

arrow-head scale

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

Shared Countries

Both species can be found in 3 countries:

🇯🇵 Japan 🇹🇼 Taiwan 🇬🇧 United Kingdom