Mating and Laying Eggs
This is a pair of Bullock's Nudibranch - Hypselodoris bullockii in a pale/cream colour variation. They can also be found in blue colour variation.
Both the Nudibranch in the picture are 'connected' in a mating position and the one on the right is already starting to lay its eggs, this can be seen at the end of her body, with a small patch of brown colour stuff. Nudibranch lays their eggs in ribbons, glued/attached to substrates like coral rubbles, rocks and sometimes, other shells.
''Hypselodoris bullockii'' is a species of colorful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
''Hypselodoris bullockii'' is quite variable in color. ''Hypselodoris apolegma'', which looks similar to this species , and was assumed to be possibly a different color form of ''H. bullockii''. However, recent phylogenetic data confirm the distinction of the two species, and suggest a sister species relationship between them.
