Appearance
This species is usually less than 2 inches in length. It has a yellow body with an identifying red mantle margin which has two semi-permanent mantle folds about mid-body. The rhinophores and branchia are yellow. Identifying individual yellow sea slugs within the genus ''Noumea'' can be challenging because .Distribution
This nudibranch was originally described from East Africa, but it has an Indo-West Pacific distribution.; also off Australia .Habitat
This species is often found on the yellow sponge ''Hyrtios'', which appears to be its preferred food source.References:
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