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Phylum Mollusca > Class Gastropoda > sea slugs > Order Sacoglossa
Thuridilla slug
Thuridilla sp.*
Family Plakobranchidae
updated Jun 2020
Where seen? More often seen by divers, this slender striped slug is sometimes seen on the intertidal near reefs on our Southern shores. Some consider Thuridilla gracilis and Thuridilla ratna to be the same species.

Features: 1-2cm. Body long, slender, with a pair of very short 'wings' (called parapodia). Dark to black with very thin white stripes along the body and a thin orange edge on the short 'wings'. It has two long tentacles with orange tips.

St. John's Island, Apr 12

Pulau Jong, Jun 12
Photo shared by Rene Ong on facebook.

*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.

Thuridilla slugs on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores


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

Pulau Semakau, Aug 13
Photo shared by Loh Kok Sheng on flickr.

Terumbu Raya, Jun 15
Photo shared by Juria Toramae on facebook.


Pulau Pawai, Dec 09
Photo shared by Loh Kok Sheng on flickr.

Thuridilla species recorded for Singapore
from Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore.
^Kathe R. Jensen. 2009. Sacoglossa (Mollusca: Gastropoda: Opisthobranchia) from Singapore.

**from WORMS

  Family Plakobranchidae
  Thuridilla gracilis=^Thuridilla ratna
Thuridilla ratna

Links

References

  • 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.
  • Kathe R. Jensen. 30 Dec 2009. Sacoglossa (Mollusca: Gastropoda: Opisthobranchia) from Singapore. The Raffles Bulletin of Zoology, Supplement 22: 207-223.
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