Nudibranch - Gymnodoris ceylonica


This nudibranch was discovered with a most charming "smile" in the middle of a large, empty stretch of sand, and having never seen this species before, I assumed it had been washed in by accident. To my surprise, many more were seen with varied spot and gill size, and I later learned Gymnodoris ceylonica often descend in mass to feed on the sea hare, Stylocheilus striatus, which can appear in huge aggregations. 30mm

29 October 2018

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