Merriam’s Pocket Mouse vs Tacked Milkcap

Perognathus merriami compared with Lactarius trivialis

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Tacked Milkcap is Vulnerable.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Tacked Milkcap
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Russulales (Russulales)
Family	Heteromyidae	Russulaceae
Genus	Perognathus	Lactarius
Species	Perognathus merriami	Lactarius trivialis

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Tacked Milkcap

VU — Vulnerable

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Tacked Milkcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Tacked Milkcap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.