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Phylum Mollusca > Class Gastropoda > sea slugs > Order Sacoglossa
Bryopsis slug
Placida daguilarensis*
Family Limapontiidae
updated Aug 10
Where seen? This superbly camouflaged slug is actually quite common on many of our shores, particularly when there is a bloom of Bryopsis seaweeds. At this time, lots of them can be seen even in a small clump of seaweed. But they are really hard to spot.

Features: Tiny, to about 1cm. Long, soft body with lots of finger-like projections (cerata) that are transparent. The digestive system extends into the cerata, and the green stuff is the seaweed 'juices' sucked up by the slug. Some have a white stripe along the upperside of the body. There is also a pattern of little lines on the sides of the body. Pale narrow foot. One pair of long rhinophores, no oral tentacles.

The egg mass is coiled, sausage-shaped mass and very sticky.

Pulau Sekudu, Aug 05

Sentosa, Nov 03

Bryopsis slugs on Singapore shores

Sentosa, May 04

Sentosa, May 04

Sentosa, Aug 04

more photos of bryopsis slugs on Singapore shores


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

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.
  • Sacoglossa (Mollusca: Gastropoda: Opisthobranchia) from Singapore. Kathe R. Jensen. Pp. 207-223. [pdf, 2.31 MB]
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