He’e A Hawaiian Day Octopus or He’e Mauli (Octopus cyanea) at Sharkfin Rock, depth 40′ Share this: Share on WhatsApp (Opens in new window) WhatsApp Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Author: Andrew An electrical engineer, amateur astronomer, and diver, living and working on the island of HawaiĘ»i. View all posts by Andrew