These tiny little sacoglossans are easily mistaken for the Placida Barackobamai. The difference between them is slight. Primarily the white on the Barack Obama extend the length of the rhinophores. Unfortunately, these photos do not do it justice. I found it flying around in the water column and waved it down with my glove onto a rocky surface below. The same surge that sent it flying in the first place, caught it again and most everything was a blur. The Sea Slugs of Hawaii site has some excellent photos. Check them out! This little one was no bigger than 6 mm and was found in North Kihei, Maui.