Octopus is related to squid, cuttlefish and other mollusks. It ranges in size from a few centimetres to the dimensions of the giant octopus whose arms can measure up to 10 metres.

• Order of octopods, from the main genus "octopus"
• A cephalopod mollusk having 8 arms or tentacles equipped with suction cups
• Habitat: rocky hollows or recesses near the coastline
• Fished from May to August in cold Atlantic coastal and precoastal waters as it returns to watercourses to spawn.