Janolus cristatus from the Netherlands

September 3, 1999
From: René Lipmann


Bill,
as promised two images of the Janolus cristatus, one is a image of the eggs.
Found in the Oosterschelde, Goese Sas, the Netherlands. Depth 5 meters.

Goese Sas is a great place for slug. You have already seen pictures taken there of
the Dendronotus and the Thecacera.

Greetings
René Lipmann

Diveteam Manta,
Amsterdam

lipmann@bvd.nl

Lipmann, R., 1999 (Sep 3) Janolus cristatus from the Netherlands. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1285

Dear René,
What a spectacular shot of the egg ribbon. In the photo of the animal you can see how the dark digestive gland duct in the cerata branches near the tip. Branching near the tip, like this, is quite characteristic of Janolus. In aeolids, which have similarly shaped cerata, containing a duct of the digestive gland, the duct is either never branched, or in some special cases, such as the genus Phyllodesmium, the duct is branched along its whole length.

Bill Rudman.

Rudman, W.B., 1999 (Sep 3). Comment on Janolus cristatus from the Netherlands by René Lipmann. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1285

Factsheet

Janolus cristatus

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