Sky Blue Phyllidia (Phyllidia coelestis) ソライロイボウミウシ – size 6cm
Sky Blue Phyllidia is a type of a Fried Egg Nudibranch. They have a Amami 2024
A closer look at the head of a Sky Blue Phyllidia. It has blue around the margin that is broken by a black “Y” shpe in the front. You can see half of the “Y” here. Amami 2024