These would appear to be among the color forms of Goniobranchus preciosus, although the marginal coloration on several of them was a bit unusual. A typical G. preciosus would have a three-colored margin, bluish-white on the outside, then red, then yellow to orange. In some of these specimens, the outer portion had irregularly thickened to break up the middle red band into a series of spots. Sometimes the outer bluish-white line is very small, almost nonexistent, making it very similar to Goniobranchus verrieri. It may be that there are multiple species hiding behind the name G. preciosus.
Not much of a light margin on the next two make them resemble Goniobranchus verrieri.
A little difficult to see the white outer marginal line in this one, so it is possible it is a form of Goniobranchus verrieri.
With an egg mass.
In the photo below, you can distinguish the masses of orange extra-capsular yolk spread throughout the egg mass. Members of Goniobranchus generally have this yolk, but it is often present as a single small "cap" of yolk adjacent to each ovum.
Created 26 December 2012
Updated 15 December 2022