Gray Slender Opossum vs Speer’s Collared Frog

Marmosops incanus compared with Mannophryne speeri

Key Differences

• Gray Slender Opossum is Least Concern while Speer’s Collared Frog is Critically Endangered.

Taxonomic Classification

Rank	Gray Slender 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	Marmosops	Mannophryne
Species	Marmosops incanus	Mannophryne speeri

Evolutionary Relationship

Gray Slender Opossum and Speer’s Collared Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray Slender Opossum

LC — Least Concern

Speer’s Collared Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Gray Slender Opossum	Speer’s Collared Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray Slender Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.