Long-tailed Sylph vs Ocellate Topeshark

Aglaiocercus kingii compared with Hemitriakis complicofasciata

Key Differences

• Long-tailed Sylph is Least Concern while Ocellate Topeshark is Vulnerable.

Taxonomic Classification

Rank	Long-tailed Sylph	Ocellate Topeshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Chondrichthyes (Cartilaginous Fish)
Order	Apodiformes (Apodiformes)	Carcharhiniformes (Ground Sharks)
Family	Trochilidae	Triakidae
Genus	Aglaiocercus	Hemitriakis
Species	Aglaiocercus kingii	Hemitriakis complicofasciata

Evolutionary Relationship

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

Conservation Status

Long-tailed Sylph

LC — Least Concern

Ocellate Topeshark

VU — Vulnerable

Physical Characteristics

Attribute	Long-tailed Sylph	Ocellate Topeshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Ocellate Topeshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

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

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.