Definition

1. Noun:
   • A species of pelagic octopus: Argonauta argo is the scientific name for a specific type of octopus, also commonly known as the greater argonaut. It is found in warm seas.
   • Characterized by its shell: The female of this species secretes and inhabits a delicate, white, paper-thin spiral shell, which is used for brooding eggs and for buoyancy. Males are much smaller and lack a shell.

Usage Examples

• Noun:
  • The Argonauta argo is often studied for its unique shell-building behavior.
  • We observed a female Argonauta argo drifting near the surface with its distinctive shell.

Advanced Usage

• In scientific literature: The name is always italicized, as per convention for genus and species names in biological taxonomy.
  • The study focused on the buoyancy mechanisms of Argonauta argo.

Variants and Related Words

• Argonaut (n): The common name for any octopus of the genus , which includes . Often used more generally.
  • The argonaut is sometimes called the "paper nautilus" due to its shell.
• Paper nautilus (n): A common name for these animals, referring to the texture of the female's shell. Note: True nautiluses are a different type of cephalopod.

Synonyms

• Greater argonaut: A common English name for this specific species.
• Paper nautilus: A descriptive common name, though it can refer to other species as well.

Related Phrases

• Shell-bearing octopus: A descriptive phrase highlighting the defining characteristic of the female .

Related Idioms

Noun

1. cephalopod mollusk of warm seas whose females have delicate papery spiral shells