Chromodoris elisabethina - 'flattened' egg ribbon

January 12, 2001
From: Scott Johnson

Hi Bill,

Thanks for the comments on the Cadlinella egg mass. Afraid I don't have any shots of this species actually putting down the eggs, but attached are two shots of Chromodoris elisabethina in the process. In the upper photo you can see the egg strand coming out of the reproductive opening and laying down flat. Then is seems the nudi ensures that it's flat by crawling over it. All the member of the "quadricolor" color group I'm familiar with have these kinds of egg masses, along with a few other differently colored species such as Chromodoris aspersa and a couple of as yet unidentifieds.


Johnson, S., 2001 (Jan 12) Chromodoris elisabethina - 'flattened' egg ribbon. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Scott,
Let's hope this discussion will alert some other eyes to look for other species of chromodorids laying these flat egg ribbons. I have started a special page to rcord this information.
Best wishes,
Bill Rudman.

Rudman, W.B., 2001 (Jan 12). Comment on Chromodoris elisabethina - 'flattened' egg ribbon by Scott Johnson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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