Hapalochlaena lunulata up close
Most photos of blue-ringed octopus show dramatic coloration usually because the animal is excited. This female H. lunulata is setting in the entrance of her cavity in a much more relaxed state, but still the blue rings are clearly visible. For scale, the distance between her eyes is about 1.2 cm. The lobes below the eye and the blue eye line running through the eye are characteristic of this species.