Amerika-aka-ei vs Long-tailed Ground Squirrel

Hypanus americanus compared with Urocitellus undulatus

Key Differences

• Amerika-aka-ei is Near Threatened while Long-tailed Ground Squirrel is Least Concern.

Taxonomic Classification

Rank	Amerika-aka-ei	Long-tailed Ground Squirrel
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Mammalia (哺乳類)
Order	Myliobatiformes (トビエイ目)	Rodentia (ネズミ目)
Family	Dasyatidae	Sciuridae (Squirrels)
Genus	Hypanus	Urocitellus
Species	Hypanus americanus	Urocitellus undulatus

Evolutionary Relationship

Amerika-aka-ei and Long-tailed Ground Squirrel share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Amerika-aka-ei

NT — Near Threatened

Long-tailed Ground Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Amerika-aka-ei	Long-tailed Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amerika-aka-ei

Habitat

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

Range

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

Long-tailed Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.