arrow-finned squid vs Laysan Duck

Illex oxygonius compared with Anas laysanensis

Key Differences

• arrow-finned squid is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	arrow-finned squid	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Aves (Birds)
Order	Oegopsida (Oegopsida)	Anseriformes (Anseriformes)
Family	Ommastrephidae	Anatidae
Genus	Illex	Anas
Species	Illex oxygonius	Anas laysanensis

Evolutionary Relationship

arrow-finned squid and Laysan Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-finned squid

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	arrow-finned squid	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow-finned squid

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

arrow-finned squid

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

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.