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Phylum Mollusca > Class Gastropoda > sea slugs > Order Nudibranchia > Suborder Aeolidina
Cuthona nudibranch
Cuthona sibogae
Family Tergipedidae
updated Oct 10
Where seen? This beautiful nudibranch is sometimes seen at Beting Bronok, and often encountered by divers on our reefs.

Features: 2-3.5cm long. Long narrow, soft body with many long finger-like structures (called cerata) arranged in about 8 fan-like clusters along both sides of the body. It is distinguished by the purple body and yellow tips on the cerata with a band just below the tip. The rhinophores are slender and tipped reddish purple. It also has a pair of oral tentacles (like a moustache) which are also tipped reddish purple.


Beting Bronok, Aug 06
Sometimes mistaken for the blue dragon nudibranch which has purple bands on the oral tentacles.

What does it eat?
It specialises on eating the orange Fern hydroid (Sertularella sp.).

Cuthona nudibranchs on Singapore shores

Beting Bronok, May 11

Mating?
Beting Bronok, May 11


Beting Bronok, Jul 05


Beting Bronok, May 09

Links
References
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