This is another one of those tiny little nudibranchs that is usually overlooked. Like the Eubranchulus rupium, their eggs are often easier to spot than the animal itself. In the case of this animal (and there was only one on this Plumaria hydroid), it was the eggs that drew my attention, and that was only when I was looking more closely at photos. Back I went to search for an animal and there it was. Unfortunately the Plumaria hydroids were on a dock and the current was moving quickly, so the images are not as clear as I’d like them to be. Consequently I have no good images of this animal’s rhinophores or oral tentacles. Both of them have a brown band with a white tip. Fortunately inaturalist has a number of detailed images of their eggs and the animal itself. The Homely Aeolid in these images was between 4 and 5 mm but they can get up to 7mm.
