Invertebrate ID help

Qually

Lofty Wiseman
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Jan 2, 2015
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Anyone know what this is, I have seen them quite a few times, but I've never known what makes these structures. thing.jpg
 

Qually

Lofty Wiseman
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Jan 2, 2015
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Brilliant, thanks for solving this for me Russ.
 
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