Pelagic Octopus ~ Photograph by Chris Newbert, Minden Pictures / A pelagic, or open-ocean, octopus gives off a neon glow in Hawaii. Most species of octopus have no internal skeleton, unlike other cephalopods. Deepsea, Sea Life, Transluc Pelag, Underwater, Beautiful, Thetranslucentpelag Octopuses, Deep Sea Creatures, Natural, Animal
Pelagic Octopus. Octopuses have 2 eyes and 4 pairs of arms and are bilaterally symmetric. An octopus has a hard beak, with its mouth at the center point of the arms. Octopus lack an internal or external skeleton allowing them to squeeze through tight places. Octopuses are among the most intelligent and behaviorally flexible of all invertebrates.