Lesser Pencil-tailed Tree Mouse vs Rufous Spinetail

Chiropodomys pusillus compared with Synallaxis unirufa

Key Differences

• Lesser Pencil-tailed Tree Mouse is Data Deficient while Rufous Spinetail is Least Concern.

Taxonomic Classification

Rank	Lesser Pencil-tailed Tree Mouse	Rufous Spinetail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Muridae (Mice & Rats)	Furnariidae
Genus	Chiropodomys	Synallaxis
Species	Chiropodomys pusillus	Synallaxis unirufa

Evolutionary Relationship

Lesser Pencil-tailed Tree Mouse and Rufous Spinetail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Pencil-tailed Tree Mouse

DD — Data Deficient

Rufous Spinetail

LC — Least Concern

Physical Characteristics

Attribute	Lesser Pencil-tailed Tree Mouse	Rufous Spinetail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Rufous Spinetail

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Rufous Spinetail

Rufous Spinetail (Synallaxis unirufa) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.