Octopus, in general, any eight-armed cephalopod mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, a large group of widely distributed shallow-water cephalopods. Learn more about the anatomy, behavior, and reproduction of octopuses in this artic
Quick Reference Guide Time Display/ Mode Selection Contact Activation/ Dive Planning Contact Present Depth Maximum Depth at the Surface Fast Ascent Warning (SL