The dotted nudibranch (Jorunna funebris) is a marine, slug-like invertebrate belonging to the phylum Mollusca. J. funebris are hermaphroditic and can vary in size from 15 millimetres to over 70 mm long, with an average length 35mm. They can be found in reef lagoons, below the low tide mark.
J. funebris, like all nudibranchs, has diverged from the gene
ralised molluscan body plan by losing a protective hard shell. By losing a protective shell, this animal now relies on chemical defence and crypsis colouration to avoid being predated upon. Dotted nudibranchs are carnivorous and they feed exclusively on sponges (Rudman and Willan 1998).