Argonauta argo, commonly referred to as the paper nautilus or chambered nautilus, is a species of octopus that is known for its beautiful and intricate shell. This shell features many intricate patterns and markings, making it a favorite among collectors and marine enthusiasts alike. There are several synonyms for Argonauta argo, including the paper sailor, the argonaut, the great argonaut, and the Portuguese man-of-war octopus. Each of these names is derived from different aspects of this fascinating creature, from its delicate paper-like shell to its ability to sail on the ocean's surface. No matter how you refer to it, the Argonauta argo is a truly remarkable animal that deserves our fascination and respect.