Micro-CT was performed to a polychaete Chrysopetalum debile. This specimen was fixed and preserved in 96% ethanol. For this specimen, no contrast agent was used. Scan was performed with a Skyscan 1172 at a voltage of 60kV and 172μΑ without filter for a full rotation of 360o . This specimen was scanned at the highest camera resolution with an exposure time of 1915ms. This scan was performed for visualising the jaws and pharynx for comparative morphology. Specimen was provided by Giorgos Chatzigeorgiou and scanned by Sarah Faulwetter.