Adder’S-Mouth vs Merriam’s Pocket Mouse

Malaxis bayardii compared with Perognathus merriami

Key Differences

• Adder’S-Mouth is Critically Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Adder’S-Mouth	Merriam’s Pocket Mouse
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Asparagales (Asparagales)	Rodentia (Rodents)
Family	Orchidaceae	Heteromyidae
Genus	Malaxis	Perognathus
Species	Malaxis bayardii	Perognathus merriami

Conservation Status

Adder’S-Mouth

CR — Critically Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Adder’S-Mouth	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder’S-Mouth

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Adder’S-Mouth

The Adder’S-Mouth (Malaxis bayardii) is a species in the genus Malaxis. It is currently classified as Critically Endangered on the IUCN Red List. This species inhabits Typically found in grasslands, wetlands, forests, and cultivated landscapes, found across Canada and United States.