Merriam’s Pocket Mouse vs Prickled ray

Perognathus merriami compared with Malacoraja spinacidermis

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Prickled ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Heteromyidae	Rajidae
Genus	Perognathus	Malacoraja
Species	Perognathus merriami	Malacoraja spinacidermis

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Prickled ray

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Prickled ray