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Phylum Mollusca > Class Gastropoda > sea slugs > Order Nudibranchia
Tiny black gymnodoris nudibranch
Gymnodoris sp.
Family Gymnodorididae
updated May 2020
Where seen? These tiny black nudibranchs with yellow spots are sometimes seen on some of our Northern shores. Among seaweeds and seagrasses. It appears to be seasonally common; several seen during a visit, then none seen for some time.

Features: 1cm or less. Body black with yellow spots.

What do they eat? Gymnodoris species are said to be 'voracious predators' of other sea slugs.

Changi, Jul 11

A pair of nudibranchs.
Pulau Sekudu, Apr 06

Tiny black gymnodoris nudibranchs on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores


Chek Jawa, Jan 13
Photo shared by Loh Kok Sheng on flickr.

Pulau Sekudu, Apr 06
Photo shared by Toh Chay Hoon on her blog.

Pulau Sekudu, Apr 09
Photo shared by Marcus Ng on flickr.


Changi, Jun 10
Photo shared by Toh Chay Hoon on her blog.


Pasir Ris Park, Jul 08
Photo shared by Toh Chay Hoon on flickr.

Pasir Ris Park, May 2019
Photo s hared by Jianlin Liu on facebook.


Sentosa Tg Rimau, Aug 20
Photo s hared by Jianlin Liu on facebook.

Kusu Island, Sep 09
Photo s hared by James Koh on his blog.
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