seen? This well camouflaged slug is sometimes seen among green seaweeds on our Northern and Southern shores.
Features: To about
3cm. It has a green shell and four long 'fingers' sticking out of
the sides of its body that look like tendrils of a seaweed. These
tendrils can be 'rolled up', making the slug very difficult to see
among round seagrape seaweeds, for example.
The tendrils can also be suddenly expanded and unfurled. This may be done to deter predators.
The tendrils can also be dropped off (autotomized) whereupon the tendril
continues to wriggle and thus distract the predator. Colour mostly green to match the seaweeds it is found on. Often with orange edges to its tendrils.
does it eat? Reports find this slug often among Oval
sea grape seaweeds (Caulerpa racemosa). The tendrils
may also help the slug obtain food from photosynthesis. Like
other sacoglossans, this slug retains in its body, the chloroplasts
obtained from its seaweed food.
Tendrils can be suddenly unfurled to deter predators.
Pulau Tekukor, Apr 13
slugs on Singapore shores
|Other sightings on Singapore shores
Changi East, Dec 12
Photo shared by Marcus Ng on flickr.
- K. R. Jensen. Sacoglossa (Mollusca: Gastropoda: Heterobranchia) from northern coasts of Singapore. 10 July 2015. The Comprehensive Marine Biodiversity Survey: Johor Straits International Workshop (2012) The Raffles Bulletin of Zoology 2015 Supplement No. 31, Pp. 226-249.
- K. R. Jensen & R. S. L. Ong. Spawning observed in a specimen of the shelled sacoglossan Lobiger viridis Pease, 1863 from Singapore (Mollusca: Gastropoda: Heterobranchia).10 July 2015. The Comprehensive Marine Biodiversity Survey: Johor Straits International Workshop (2012) The Raffles Bulletin of Zoology 2015 Supplement No. 31, Pp. 250-254..
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