Thuridilla flavomaculata from Sulawesi

July 21, 2000
From: Lindsay Warren

Dear Bill
This Elysia was found on 7 August 1999 on sand at a depth of 1.5m in the Lahoa Channel which runs between Pulau Kaledupa and Pulau Lintea [Tukang Besi Archipelago, SE Sulawesi, Indonesia - Operation Wallacea].  Size: 22 mm.  The rising and falling tides race at quite a lick through this channel which features a mix of silt, sand, seagrass, occasional coral and sponge outcrops.

The overall body colour is dark green and it is covered in bright yellow / orange spots of various sizes along with small white dots.  The edges of the parapodia are dusted with clusters of small white spots. The rhinophores are dark with patches of white.  We also found a much smaller specimen at a later date with similar markings and colour although not as well developed as this one.  Photo: Lindsay Warren

Any idea as to its name?

All the best
Lindsay Warren

Warren, L., 2000 (Jul 21) Thuridilla flavomaculata from Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Lindsay,
This is Thuridilla flavomaculata.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Jul 21). Comment on Thuridilla flavomaculata from Sulawesi by Lindsay Warren. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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