There are plenty of Blue Ring pics on the net, but if you don't want to
search look at...
http://www.didyouknow.cd/animals/octopus.htm

Which also explains what they can do to you.
Julian
BTW "the piece of shell" Strike refers to was quite long - I am not that
mad!

Strike wrote
> Today's real find - and captured on image - was a small Blue-Ringed
Octopus.
> Despite its dimunitive size, (3-4 centimetres) it's a deadly little bugger
> that, when aroused by having somebody like Julian giving it a gentle prod
> with a piece of shell, displays iridescent blue rings on its body!
>