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Phylum Mollusca > Class Gastropoda > sea slugs > Order Nudibranchia
Black prickly nudibranch
Atagema intecta
Family Dorididae

updated Aug 10

Where seen? This black nudibranch with prickly bumps is sometimes seen on some of our shores, on coral rubble. It was previously known as Trippa intecta.

Features: Variable in size, sometimes 1cm long, others up to 6cm long. Very dark maroon, almost black. There are tiny prickly bumps all over its body. The feathery gills appears similar to the rest of the body. The species should have a line of pale or beige bumps along the upper body length, but none of those seen had this. The foot has small white spots on the upperside and is smooth and lighter on the underside.

Chek Jawa, Jul 05

Smooth foot on the underside.

White spots on upperside of foot.

Rhinophore.

Black prickly nudibranchs on Singapore shores


Tiny one about 1cm long.
Sentosa, Oct 04


Pulau Hantu, Sep 10

Photo shared by Toh Chay Hoon on her blog.

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


Pulau Semakau, Feb 08
Photo shared by Toh Chay Hoon on her flickr.

more photos of black prickly nudibranchs on Singapore shores
northern shores part 1 | part 2
southern shores

Links

References

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