Distribution: Uncommon to rare in the Solitary Islands Marine Park. Widespread throughout the Indo-Pacific, north to Japan. In Australia recorded from the north coast of New South Wales and southern Queensland.

Ecological Notes: Found from inter-tidal regions to 15 m depth. Food source unknown but probably sponges.

Additional Notes: This small dorid has many rounded pustules and a dense layer of spicules under the skin of its orange mantle. Rhinophores are relatively large and fully retractile. Specimens recorded in Australia are yellow or orange in colour, while those from Japan range from yellow to blue/green. Often a Y shaped pattern on the dorsal surface between the rhinophores. Grows to 20 mm.

References: Australian Museum, Sea Slug Forum. http://www.seaslugforum.net/find/siraimmo. Accessed 03/08/18.