Linnaeus's mouse opossum vs Speer’s Collared Frog

Marmosa murina compared with Mannophryne speeri

Key Differences

• Linnaeus's mouse opossum is Least Concern while Speer’s Collared Frog is Critically Endangered.

Taxonomic Classification

Rank	Linnaeus's mouse opossum	Speer’s Collared Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Didelphimorphia (Didelphimorphia)	Anura (Frogs & Toads)
Family	Didelphidae	Aromobatidae
Genus	Marmosa	Mannophryne
Species	Marmosa murina	Mannophryne speeri

Evolutionary Relationship

Linnaeus's mouse opossum and Speer’s Collared Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Linnaeus's mouse opossum

LC — Least Concern

Speer’s Collared Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Linnaeus's mouse opossum	Speer’s Collared Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Linnaeus's mouse opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Speer’s Collared Frog

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Shared Countries

Both species can be found in 1 countries:

🇻🇪 Venezuela