Cochran's False Brook Salamander vs Dusky-footed handleys mouse

Pseudoeurycea cochranae compared with Handleyomys fuscatus

Key Differences

• Cochran's False Brook Salamander is Vulnerable while Dusky-footed handleys mouse is Least Concern.

Taxonomic Classification

Rank	Cochran's False Brook Salamander	Dusky-footed handleys mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Rodentia (Rodents)
Family	Plethodontidae	Cricetidae
Genus	Pseudoeurycea	Handleyomys
Species	Pseudoeurycea cochranae	Handleyomys fuscatus

Evolutionary Relationship

Cochran's False Brook Salamander and Dusky-footed handleys mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cochran's False Brook Salamander

VU — Vulnerable

Dusky-footed handleys mouse

LC — Least Concern

Physical Characteristics

Attribute	Cochran's False Brook Salamander	Dusky-footed handleys mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cochran's False Brook Salamander

Habitat

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

Range

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

Dusky-footed handleys mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Cochran's False Brook Salamander

Cochran's false brook salamander (Pseudoeurycea cochranae) is a small, slender plethodontid salamander endemic to the pine-oak and cloud forests of the eastern Sierra Madre Occidental and adjacent ranges of Mexico. Like all members of the family Plethodontidae, it is lungless — respiration occurs entirely through moist skin and mucous membranes of the mouth, constraining the species to damp microhabitats such as mossy rock faces, rotting logs, and the leaf litter layer in humid montane forest. The species is direct-developing, laying small clutches of eggs in moist terrestrial sites from which miniature fully formed salamanders emerge, bypassing the aquatic larval stage characteristic of most other amphibian orders. Pseudoeurycea cochranae is a nocturnal forager, preying on small invertebrates including collembolans, mites, and small beetles encountered during nightly activity in its humid forest microhabitat. The species is classified as Vulnerable by the IUCN owing to its limited distribution, continuing deforestation driven by logging, agricultural conversion, and human settlement in its montane range, and susceptibility to climate-driven shifts in the moisture regime of cloud forest habitats. The genus Pseudoeurycea is largely endemic to Mexico and comprises several dozen species, many of which are similarly threatened. Like several congeners, P. cochranae is named in honour of Doris Mable Cochran. Population monitoring in its restricted range is an ongoing conservation priority.