Janolus praeclarus and its egg-ribbons

July 10, 2003
From: Marina Poddubetskaia

Dear Bill,
Here is Janolus praeclarus from Dakar. This species is quite common in Senegal. But 'Fayis' is THE site of Janolus. In this place I saw a multitude of J. praeclarus, I have never seen so many specimens of one species in the same place before. It was incredible! The largest specimen I saw was about 40mm in length.

Also, there were a lot of egg-ribbons and I had some difficulties to take good photos because of great surge. I saw one animal start laying but there were too much movement in the water and it abandoned the attempt quickly.

Date: June 07, 2003
Location: Dakar, Senegal, Eastern Atlantic
Site: Fayis
Depth: 17-19m
Size:
Animal: 25-30mm
Egg ribbon: 10-15mm in diameter
Photos: Marina Poddubetskaia - Nembro website

Best wishes,
Marina.

nembro@nembro.info

Poddubetskaia, M., 2003 (Jul 10) Janolus praeclarus and its egg-ribbons. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10302

Thanks Marina,
For an animal which has only been reported a couple of times, you have given us some valuable information on its natural history. I have included [lower right], from one of your photos, a full size copy of the plant-like growth which is obviously abundant around the animals. This is an arborescent [=bushy] bryozoan - most probably the food of Janolus praeclarus.
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Jul 10). Comment on Janolus praeclarus and its egg-ribbons by Marina Poddubetskaia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10302

Factsheet

Janolus praeclarus

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