Habitat: Eastern Australia
Status: Not listed, but very rare
On the western side of this island grows a purple ascidian (Sigillina cyanea) which is the only food source that the Donut Nembrotha is known to feed on. So, if you happen to be diving in that area make sure to check out the purple ascidians because you might get lucky and spot the nudibranch!
Adults usually have fluorescent pink rings (or donuts) while juveniles have bright orange ones.