Merriam’s Pocket Mouse vs Spineless Stream Toad

Perognathus merriami compared with Bufo aspinius

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Spineless Stream Toad is Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Spineless Stream Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Heteromyidae	Bufonidae
Genus	Perognathus	Bufo
Species	Perognathus merriami	Bufo aspinius

Evolutionary Relationship

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

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Spineless Stream Toad

EN — Endangered

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Spineless Stream Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Spineless Stream Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.