Ceratosoma sinuata - magnifica form

October 25, 2000
From: Akos L. & Donata P

Note added 30 April 2007: Until now on the Forum this species has been considered a form of C. sinuata [see message #19854]. It is now recognised as C. flavicostata.

Hello again,

The UPPER PHOTO is the other beastie from Shark Point, Clovelly, Sydney, the same year (1998-1999).
This is a specimen on a different rock from theCeratosoma sinuata colour forms.

The LOWER PHOTO is from the Steps, at Kurnell, Sydney. This specimen is the really large one in one of my previous messages. I took this shot with a NIKONOS III and a 2:1 xt tube, giving me double life-size magnification on the slide.

As you'll note, this slug is somehow "hanging on" to another C. sinuata in front of its head.

Akos & Donata


Lumnitzer, A. & Piotrowska, D. , 2000 (Oct 25) Ceratosoma sinuata - magnifica form. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3227

Dear Akos & Donata,
Thanks for the photos. it is helping to build up quite a good picture of the various colour forms. Concerning the two 'hanging on' in the lower photo. I thought perhaps they were mating but if that were the case then they are both 'left-handed' or else the photo is reversed as the genital apparatus is on the right side of the body.
Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Oct 25). Comment on Ceratosoma sinuata - magnifica form by Akos L. & Donata P. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3227

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