Notodoris gardineri (Eliot, 1906)
Relatively common in the Solitary Islands Marine Park. Known from the Maldives, Indonesia and the Solomon Islands. In Australia known from the Exmouth region of Western Australia, the Great Barrier Reef, northern New South Wales and Lord Howe Island.
Frequents reef tops and slopes, intertidal to shallow subtidal. Depth range 10 to 20 m, more commonly 7 to 15 m.
Similar in appearance to Notodoris minor but with black blotches rather than lines and spots. Feeds on the yellow sponge, L. primigenia and Pericharax heterographis. Grows to 10 cm.
Gary Cobb, David Mullins, Nudibranchs Encyclopedia, 2nd Edition, 2015. Publishers Thomas Slone, Masalai Press and Tim Hochgrebe, Underwater Australasia. p.90.
Matt J. Nimbs, Stephen D.A. Smith, An Illustrated Inventory of the Sea Slugs of New South Wales, Australia (Gastropoda: Heterobranchia). The Royal Society of Victoria, 128, 44-113, 2016 10.1071/RS16011. CSIRO Publishing. p.61.