February 21, 2000
From: Valda Fraser
I noticed these eggs and decided to take a photo. Hopefully you'll know which kind of nudibranch laid them. How long does it take them to hatch?
Locality: South Coast KwaZulu-Natal SOUTH AFRICA, Scottburgh - 25m. 23 Jan 2000.
I'm afraid it is very difficult to identify nudibranchs from their egg masses. Firstly we know the egg masses of very few species, and secondly, quite a few have an egg ribbon very similar to your photo except for the colour. Some species, like in the genus Rostanga, have egg masses which are so distinctive that they can be used to identify the species, but that is very rare.
So if you ever see an animal laying an egg ribbon it is well worthwhile photographing it and the slug.
Have a look in the Gneral Topics Index for some other information on eggs and use the Search button as well because I have chatted about egg shape, development times etc on a number of occasions.
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From: Erwin Koehler , October 8, 2002
Nudibranch Egg masses
From: Laurette Hanekom, July 19, 2002
From: Alice Lee, July 18, 2002
Platydoris formosa? - egg ribbon
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Do Sea Slugs lay eggs?
From: Emily, March 13, 2002
A strange place to lay eggs
From: Mary Jane Adams , January 25, 2002
Baki's Egg coils
From: Bernard Picton, November 6, 2001
Whose eggs are these?
From: Baki Yokes, November 2, 2001
Are these eggs?
From: Beniamino Usai, October 23, 2001
number of eggs
From: Jeanette McInnes, October 7, 2001
Opisthobranch egg masses
From: Phanor Montoya, October 7, 2000
How many eggs do sea slugs lay?
From: MIKE, October 4, 2000