Distribution: Sometimes common in the Solitary Islands Marine Park. Thought to be endemic to eastern Australia from Central Queensland to Ulladulla in southern New South Wales.

Ecological Notes: Found inter-tidally and to a depth of 25 m on gravel or reef edge. Feeds on sponges.

Additional Notes: This small dorid has a white mantle with either flat or slightly rounded dark purple spots. The mantle is edged with a gold line or series of gold spots. The foot has a violet margin. Grows to 25 mm.

References: Gary Cobb, David Mullins, Nudibranchs Encyclopedia, 2nd Edition, 2015. Publishers Thomas Slone, Masalai Press and Tim Hochgrebe, Underwater Australasia. pp.152-3.

Australian Museum, Sea Slug Forum. http://www.seaslugforum.net/factsheet/mexifest. Accessed 14/08/18.