Dangerous or not?

leslie hempel

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cant really make out.. at a guess perhaps a nudi/ slug?
 

Mike

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Does it move about? it looks a bit like a nudi as Les pointed out, but i wondered if it might be a nem?
 

jacquesb

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It looks like an sand anemone lying on it's side to me.... not like a nudi at all.

Even though the picture is not too clear..... This little creature's body is rounded, whereas a nudi's body is usually flattened....

The nudi's have external gills on the "clearly" top side of the body, where-as this little creature, has "tentacles" covering the complete one "end" of it....
 

Puppy

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From what i can make out, it looks like an swimming anemone.
CaCO3 google swimming anemone or (Boloceroides mcmurrichi) and let us know if it is anything like the 1 u have in your tub.





 

leslie hempel

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eish i can see it better now... does resemble an anemone..
 

CaCO3

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Closest to it so far is the Riterri (radianthus magnifica). It has settled on a rock high up near the surface and adhered to the rock, the head has opened up and the beginnings of short tentacles heading out. Still white, but it was in darkness for a day or two. It is about the size of my thumb, bit smaller. Will try get a clearer pic tomorrow morning when it has settled properly. Thanks guys, Dare I say I have the pros stumpted???? LOL
 

CaCO3

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Was also thinking Bartholomea annulata? Very similar looking from the top.
 

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