Half regenerated ectocyst of Stephanella hina Schwaha, Thomas Retraction in half-regenerated form MovingImage video/quicktime 319143936 bytes o:440828 hdl:11353/10.440828 http://phaidra.univie.ac.at/o:440828 eng CC BY-NC-SA 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/