Nembrotha guttata? from North Sulawesi

May 19, 2007
From: Linda Ianniello

On a recent trip to Lembeh Strait in N. Sulawesi, I found this slug that I have been unable to identify, in spite of its distinctive colors. I finally figured out it might be a "curled up" Nembrotha, like the one from Erwin Koehler you are calling Nembrotha spp. Do you agree? Looking closely, one rhinophore is smaller than the other, and there is a shrimp sitting by the small rhinophore - a coincidence I hope!

Locality: Lembeh Strait, Police Pier dive site, N. Sulawesi. Indonesia. October 26, 2005. Muck dive. Photographer: Linda Ianniello

Linda Ianniello

Ianniello, L., 2007 (May 19) Nembrotha guttata? from North Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Linda,
I am pretty sure your animal is Nembrotha guttata. Concerning the shrimp. It looks like there may be another one amongst the gills. Looking at the photo, I would say the rhinophore looks 'short' because it is partly retracted into the special pocket these animals have to protect their 'delicate structures' precisely from attacks like this.
Best wishes,
Bill Rudman

Rudman, W.B., 2007 (May 19). Comment on Nembrotha guttata? from North Sulawesi by Linda Ianniello. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Nembrotha guttata

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