User:Bine Mai

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First edit - 20:46, 6 March 2007
5,000th edit - 21:12, 30 December 2007
10,000th edit - 12:32, 25 June 2008
15,000th edit - 11:56, 31 October 2008
20,000th edit - 20:52, 27 January 2009
25,000th edit - 23:30, 15 July 2009
30,000th edit - 15:33, 7 September 2010
35,000th edit - 20:13, 2 January 2011
40,000th edit - 14:05, 26 July 2013

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Bispira volutacornis
Bispira volutacornis, sometimes known as the twin fan worm or spiral fan worm, is a type of tube worm found in the shallow sublittoral zone of the eastern Atlantic Ocean. It grows in crevices and in stony areas and prefers areas rich in sediment but with low levels of illumination. It has a parchment-like tube with a mucoid outer layer that is often coated with mud or silt. The tube is usually concealed in a crevice and the worm can retract into the tube when disturbed. It feeds on plankton which it captures with its plumes. It also uses the plumes to gather sediment with which to expand the tube. This B. volutavornis worm was photographed in Arrábida Natural Park, Portugal.Photograph credit: Diego Delso