nudibranchs text index | photo index
Phylum Mollusca > Class Gastropoda > sea slugs > Order Nudibranchia
Reliable nudibranch
Goniobranchus fidelis
Family Chromodoridae
updated May 2020
Where seen? This small colourful nudibranch with this distinctive pattern is more often seen by divers. Sometimes seen on the intertidal. It was previously known as Chromodoris fidelis.

1-2cm. Body broad usually white with typical undulating edge pattern in red. Rhinophores and gills tipped in black.

What does it eat? Members of the Family Chromodorididae absorb the toxic chemicals in their sponge food and incorporate these chemicals into the mantle glands on their backs where they repel predators.

Pulau Tekukor, May 10
Photo shared by James Koh on flickr.

St. John's Island, Apr 22
Photo shared by Jonathan Tan on facebook.

St John's Island, Apr 21
Photo shared by Jianlin Liu on facebook.

Terumbu Semakau, May 17
Photo shared by Jianlin Liu on facebook.

Terumbu Pempang Tengah, May 22
Photo shared by Richard Kuah on facebook.

Terumbu Raya, Mar 09
Photo shared by Loh Kok Sheng on his blog.



  • Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore (pdf), Raffles Museum of Biodiversity Research, National University of Singapore.
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