![Atlantic longarm octopus, Cephalopods: Cephalopoda, Invertebrates, LIFE STAGES, less than 1 inch, Laz Ruda, Lazaro Ruda Wildlife Photographer, Longarm octopus, MARINE LIFE, Macrotritopus defilippi, Mollusks: Mollusca, Octopus: Octopoda, PHOTO TYPE, night dive, SIZE, macro, TheLivingSea.com, West Palm Beach, [LOCATION], blackwater, larvae, horizontal, lilliput longarm octopus, macro, marine, mimic octopus, ocean, underwater, underwater photo](https://oceanwildlifephoto.com/wp-content/uploads/2020/07/200703-211554-0050.jpg)
This larval octopus in the Macrotritopus genus is identified by its longer third arms. The adult form of this genus was unknown until 1985 when a juvenile, such as the one in this picture (< 1in.), was raised in a laboratory. Learn more about octopus by following OctoGirl on Facebook.