Gymnodoris bicolor (Alder & Hancock, 1864)

We saw this species at several locations around Oahu, including day dives at Hanauma Bay and on the shallow reef off Kewalo Basin, and at night in about 10m of water off Pupukea. Externally, this looks very similar to Gymnodoris citrina, which we have seen extensively in the Marshall Islands, but the literature indicates they can be distinguished by their radular teeth.

The specimen with its egg mass below was found under a rock at Kewalo.

Sea Slugs of Hawaii

Created 20 April 2009

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