Large-crested Toad vs Napo Spiny-rat

Incilius cristatus compared with Proechimys quadruplicatus

Key Differences

• Large-crested Toad is Endangered while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Large-crested Toad	Napo Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Rodentia (Rodents)
Family	Bufonidae	Echimyidae
Genus	Incilius	Proechimys
Species	Incilius cristatus	Proechimys quadruplicatus

Evolutionary Relationship

Large-crested Toad and Napo Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Large-crested Toad

EN — Endangered

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Large-crested Toad	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large-crested Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

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

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.