Cuetzalan Salamander vs Long-tailed Sylph

Aquiloeurycea quetzalanensis compared with Aglaiocercus kingii

Key Differences

• Cuetzalan Salamander is Critically Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Cuetzalan Salamander	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Caudata (Caudata)	Apodiformes (Apodiformes)
Family	Plethodontidae	Trochilidae
Genus	Aquiloeurycea	Aglaiocercus
Species	Aquiloeurycea quetzalanensis	Aglaiocercus kingii

Evolutionary Relationship

Cuetzalan Salamander and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cuetzalan Salamander

CR — Critically Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Cuetzalan Salamander	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cuetzalan 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.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.