) I'm not sure what type but I'm almost positive these are ocellaris clownfish eggs. Almost 2 out of 3 clownfish are eaten before they even hatch; caviar is a good source of protein, which is very scarce on the reef.
A is a member of Nudibranchia, a group of soft-bodied, marine gastropod mollusks which shed their shell after their larval stage. They are noted for their often extraordinary colors and striking forms. There are more than described species of nudibranchs.