Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Living Organisms (hierarchy name)
4. living organisms (entities)
5. Eukaryota (domain)
6. Animalia (kingdom)
7. Mollusca (phylum)
8. Cephalopoda (class)

Anotations

Scope note:

Order of cephalopods containing only one extant member; considered to be a possible connecting link between the Teuthida and the Octopoda. They are purplish-black gelatinous animals with one or two pairs of paddle-shaped fins at various stages of growth; they have eight arms and two small retractile filaments.