Martadoris sp. (Willan and Chang, 2017)

Distribution: 

Uncommon to rare in the Solitary Islands Marine Park. In Australia recorded from Heron Island, southern Queensland, Lord Howe Island and northern New South Wales.

Ecological Notes: 

Believed to feed on bryozoans, depth to at least 20 m.

Additional Notes: 

Bright orange body, yellowish gills with purple tips and orange rhinophores. Some authors consider this a colour form of Tambja amakusana. Darker forms of that animal may have white flecks but the gills tend to be pale with dark tips. Grows to at least 30 mm.

References: 

Welcome strangers: Southern range extensions for seven heterobranch sea slugs (Mollusca: Gastropoda) on the subtropical east Australian coast, a climate change hot spot Matt J.Nimbs, Stephen D.A.Smith https://www.sciencedirect.com/science/article/pii/S2352485516301402

Gary Cobb, David Mullins, Nudibranchs Encyclopedia, 2nd Edition, 2015. Publishers Thomas Slone, Masalai Press and Tim Hochgrebe, Underwater Australasia. pp.274-5.