Cratena peregrina having a ride on a fish

November 23, 2006
From: Dominique Horst


Hi Bill,

These photos are only for fun. After a long dive, with nothing exceptional, my friend showed me this show - Cratena peregrina - having a ride on the rock fish Scorpaena notata (Rafinesque, 1810).  So in the end, we were lucky.

Locality: Cap d'Antibes, 5 m, France, Mediterranean sea, 1 September 2006, rocks. Length: 20 mm. Photographer: Dominique Horst.

Kind regards,
Dominique

dominique.horst@wanadoo.fr

Horst, D., 2006 (Nov 23) Cratena peregrina having a ride on a fish. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/18454

Dear Dominique,
Thanks for these nice photos. If I had realised just how many photos we were going to get on the Forum of nudibranchs crawling over scorpaenids and other fish with similar sedentary habits I would have started a 'visiting fish' page. I guess what all these fish have in common is that they spend a lot of time sitting very still waiting to ambush their prey. I guess part of sitting very still behaviour is putting up with small things creeping and crawling over you.

I must admit it does look quite incongruous to see such fragile animals venturing so close to quite dangerous predators.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Nov 23). Comment on Cratena peregrina having a ride on a fish by Dominique Horst. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/18454

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