Merriam’s Pocket Mouse vs Sawback skate

Perognathus merriami compared with Leucoraja pristispina

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Sawback skate
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	Leucoraja
Species	Perognathus merriami	Leucoraja pristispina

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Sawback skate

LC — Least Concern

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Sawback skate
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Sawback skate