arrow-finned squid vs Long-tailed Sylph

Illex oxygonius compared with Aglaiocercus kingii

Taxonomic Classification

Rank	arrow-finned squid	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Aves (Birds)
Order	Oegopsida (Oegopsida)	Apodiformes (Apodiformes)
Family	Ommastrephidae	Trochilidae
Genus	Illex	Aglaiocercus
Species	Illex oxygonius	Aglaiocercus kingii

Evolutionary Relationship

arrow-finned squid and Long-tailed Sylph share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-finned squid

LC — Least Concern

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	arrow-finned squid	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow-finned squid

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

arrow-finned squid

The Arrow-finned squid, Illex oxygonius, is a species. It is currently assessed as least concern on the IUCN Red List.

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.