Since this is the first recorded sighting of this Melibe in Hawaii, there is little known about it except for what this author and photographer has to say and some important elaborations made by Cory Pittman on Sea Slugs of Hawaii. I found this animal in less than a metre of water in a wave-washed tide pool in Ma’alaea Harbour.  If it had not begun to swim in a manner familiar to me, I would have passed it off as the algae it was found alongside.  But it swam like other Melibes, dancing back and forth, flexing, resting, and flexing again.  It is a semi-transparent, goldish-brown animal and at first I thought it was a Melibe pilosa or Thrownet Nudibranch.  It still has the pattern of a thrownet on its body, oral veil and cerata.  Its hood is rather small in relation to its body.  So look closely in tidepools for algae that moves. To 90mm or 3.75″.  Update — another animal was found in February of 2021 in approximately 30 ft of water.