Bolivian Laucha vs Chunky False Brook Salamander

Calomys boliviae compared with Aquiloeurycea cephalica

Taxonomic Classification

Rank	Bolivian Laucha	Chunky False Brook Salamander
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Amphibia (両生類)
Order	Rodentia (ネズミ目)	Caudata (有尾目)
Family	Cricetidae	Plethodontidae
Genus	Calomys	Aquiloeurycea
Species	Calomys boliviae	Aquiloeurycea cephalica

Evolutionary Relationship

Bolivian Laucha and Chunky False Brook Salamander share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Bolivian Laucha

LC — Least Concern

Chunky False Brook Salamander

LC — Least Concern

Physical Characteristics

Attribute	Bolivian Laucha	Chunky False Brook Salamander
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bolivian Laucha

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chunky False Brook Salamander

Habitat

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

Range

Found in Mexico.

Bolivian Laucha

The Bolivian Laucha (Calomys boliviae) is a species in the genus Calomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Chunky False Brook Salamander

The Chunky False Brook Salamander (Aquiloeurycea cephalica) is a Least Concern plethodontid salamander endemic to Mexico, found in cloud forest and humid montane habitats in the Sierra Madre Oriental and related mountain ranges. The genus Aquiloeurycea is a recently erected Mexican endemic genus segregated from the broader genus Pseudoeurycea, comprising several small, robustly built (hence 'chunky') salamanders associated with high-elevation forests. Like all plethodontids, A. cephalica is a lungless salamander that breathes entirely through its moist, vascularized skin and the lining of its mouth. It is a direct developer, skipping the aquatic larval stage entirely and laying eggs in terrestrial microhabitats such as rotting logs, leaf litter, and soil. A. cephalica inhabits cool, humid forests of pine-oak and cloud forest zones in northern Mexico, where it forages for small invertebrates in the leaf litter and soil. The IUCN assesses it as Least Concern due to its reasonably wide distribution within its montane range. Deforestation, cattle grazing, and the conversion of cloud forest to agriculture represent ongoing threats to populations throughout its range.