Dwarf Hagfish vs Long-tailed Sylph

Myxine pequenoi compared with Aglaiocercus kingii

Key Differences

• Dwarf Hagfish is Data Deficient while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Dwarf Hagfish	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Myxini (Myxini)	Aves (Birds)
Order	Myxiniformes (Myxiniformes)	Apodiformes (Apodiformes)
Family	Myxinidae	Trochilidae
Genus	Myxine	Aglaiocercus
Species	Myxine pequenoi	Aglaiocercus kingii

Evolutionary Relationship

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

Conservation Status

Dwarf Hagfish

DD — Data Deficient

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Dwarf Hagfish	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf Hagfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.