Merriam’s Pocket Mouse vs Reticulate round ray

Perognathus merriami compared with Urotrygon reticulata

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Reticulate round ray is Critically Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Reticulate round ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Myliobatiformes (Myliobatiformes)
Family	Heteromyidae	Urotrygonidae
Genus	Perognathus	Urotrygon
Species	Perognathus merriami	Urotrygon reticulata

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Reticulate round ray

CR — Critically Endangered

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Reticulate round ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Reticulate round ray