Anderson's Salamander vs Napo Spiny-rat

Ambystoma andersoni compared with Proechimys quadruplicatus

Key Differences

• Anderson's Salamander is Critically Endangered while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Anderson's Salamander	Napo Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Rodentia (Rodents)
Family	Ambystomatidae	Echimyidae
Genus	Ambystoma	Proechimys
Species	Ambystoma andersoni	Proechimys quadruplicatus

Evolutionary Relationship

Anderson's Salamander and Napo Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Anderson's Salamander

CR — Critically Endangered

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Anderson's Salamander	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Anderson's Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically 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.

Anderson's Salamander

The Anderson's Salamander (Ambystoma andersoni) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo.