Lobiger and eggmass from the Philippines

April 11, 2003
From: Erwin Koehler

Dear Bill,
Here are 3 pictures of what I think is Lobiger viridis from the Philippine Islands. I don't know if the egg mass is from it. There was a large field of that algae (approx. 5 square meters) and I discovered first this egg mass, then searched for its producer and found the Lobiger (Image A) The other one (Image B) was found during a night dive hidden in a different kind of algae.

There was no more power in the batteries so I collected it and did the shot at the next dive.

A: Siquijor Island, divesite "Pier"; Depth: 16m; 03 March 2003; Size: 19mm. Eggmas approx. 3cm.
B: Date: Cabilao Island, divesite "Busstop"; Depth: 8m; 27 Feb. 2003; Size: 24mm.

Cheers,
Erwin

Erwin@medslugs.de

Koehler, E., 2003 (Apr 11) Lobiger and eggmass from the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9589

Thanks Erwin,
The algae the eggs are on is what I would call Caulerpa racemosa. Algologists sometimes can see subtle differences in the relative shape and size of the bladders but the distinctions are too difficult for me. This 'bunches of grapes' Caulerpa is a good place to look for all sorts of sacoglossans. The eggs are probably those of Lobiger but we need to catch them at to be sure.
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Apr 11). Comment on Lobiger and eggmass from the Philippines by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9589

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