Golden-mantled Saddle-back Tamarin vs Long-tailed Sylph

Leontocebus tripartitus compared with Aglaiocercus kingii

Key Differences

• Golden-mantled Saddle-back Tamarin is Near Threatened while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Golden-mantled Saddle-back Tamarin	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Apodiformes (Apodiformes)
Family	Callitrichidae	Trochilidae
Genus	Leontocebus	Aglaiocercus
Species	Leontocebus tripartitus	Aglaiocercus kingii

Evolutionary Relationship

Golden-mantled Saddle-back Tamarin and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Golden-mantled Saddle-back Tamarin

NT — Near Threatened

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Golden-mantled Saddle-back Tamarin	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Golden-mantled Saddle-back Tamarin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador