Grizzled Colilargo vs Speer’s Collared Frog

Oligoryzomys griseolus compared with Mannophryne speeri

Key Differences

• Grizzled Colilargo is Least Concern while Speer’s Collared Frog is Critically Endangered.

Taxonomic Classification

Rank	Grizzled Colilargo	Speer’s Collared Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Cricetidae	Aromobatidae
Genus	Oligoryzomys	Mannophryne
Species	Oligoryzomys griseolus	Mannophryne speeri

Evolutionary Relationship

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

Conservation Status

Grizzled Colilargo

LC — Least Concern

Speer’s Collared Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Grizzled Colilargo	Speer’s Collared Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Grizzled Colilargo

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