Merriam’s Pocket Mouse vs Roughback Whipray

Perognathus merriami compared with Fluvitrygon kittipongi

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Roughback Whipray is Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Roughback Whipray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Myliobatiformes (Myliobatiformes)
Family	Heteromyidae	Dasyatidae
Genus	Perognathus	Fluvitrygon
Species	Perognathus merriami	Fluvitrygon kittipongi

Evolutionary Relationship

Merriam’s Pocket Mouse and Roughback Whipray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Roughback Whipray

EN — Endangered

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Roughback Whipray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Roughback Whipray