Are these 'lettuce nudibranch' eggs?

November 26, 2005
From: Karen Hair


I bought 6 of these amazing creatures less then a week ago, one went into my 75g, today it layed these eggs?

And in another tank I put 3. One layed these today. Are they eggs ( I assume they are). What is the gestation of them? Here is the second nudi egg batch. Length: 1 1/2 inches. Photographer: Karen Hair

Karen Hair

karensaltwater1@att.net

Hair, K., 2005 (Nov 26) Are these 'lettuce nudibranch' eggs?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15346

Note added 23 Jan 2006: On reflection this is most probably Elysia diomedea, the East Pacific species. The dark spots along the edge of the parapodia and the elongate green bands on the sole of the foot can be seen in other photos on the Forum..... Bill Rudman

Dear Karen,

Yes this is Elysia crispata. I know people call this the Lettuce Nudibranch, but it's not a very good name because it is not a nudibranch. Nudibranchs are a special group of carnivorous [animal eating] sea slugs while Elysia is a 'Sacoglossan', which is a group of herbivorous [plant eating] sea slugs.

If you look at the earlier messages on this species which are attached to the Fact Sheet you will see discussions on other people's experience at breeding these slugs in aquaria.

Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Nov 26). Comment on Are these 'lettuce nudibranch' eggs? by Karen Hair. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15346

Factsheet

Elysia diomedea

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