@article {5391, title = {Comparative morphology of the bursal nozzles in acoels (Acoela, Acoelomorpha).}, journal = {J Morphol}, volume = {267}, year = {2006}, month = {2006}, pages = {634 - 648}, keywords = {Wulguru cuspidata}, author = {Petrov,A and Hooge,M and Tyler,S} }