Amerika-aka-ei vs Merriam’s Pocket Mouse

Hypanus americanus compared with Perognathus merriami

Key Differences

• Amerika-aka-ei is Near Threatened while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Amerika-aka-ei	Merriam’s Pocket Mouse
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	Heteromyidae
Genus	Hypanus	Perognathus
Species	Hypanus americanus	Perognathus merriami

Evolutionary Relationship

Amerika-aka-ei and Merriam’s Pocket Mouse share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Amerika-aka-ei

NT — Near Threatened

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Amerika-aka-ei	Merriam’s Pocket Mouse
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.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.