Elm Leech vs Northern Birch Mouse

Hypsizygus ulmarius compared with Sicista betulina

Key Differences

• Elm Leech is Critically Endangered while Northern Birch Mouse is Least Concern.

Taxonomic Classification

Rank	Elm Leech	Northern Birch Mouse
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Agaricales (Gilled Mushrooms)	Rodentia (Rodents)
Family	Lyophyllaceae	Dipodidae
Genus	Hypsizygus	Sicista
Species	Hypsizygus ulmarius	Sicista betulina

Conservation Status

Elm Leech

CR — Critically Endangered

Northern Birch Mouse

LC — Least Concern

Physical Characteristics

Attribute	Elm Leech	Northern Birch Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Elm Leech

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Northern Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, Russia, Sweden, and Ukraine.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden