Reef Octopus Octopus cyanea during a nightdive at Air Prang, Lembeh. Octopus cyanea? What octopus is it? It's always hard to ID cephalopods because they can change in shape and color almost how they please. Another beautiful individual has been seen at Jahir, a different divesite in Lembeh Strait: PREV Zebra Crabs NEXT Crinoid Cuttlefish