'Headbanging' Stephanella hina Schwaha, Thomas Stephanella hina and rapid water movements MovingImage video/quicktime 138756096 bytes o:440976 hdl:11353/10.440976 http://phaidra.univie.ac.at/o:440976 eng CC BY-NC-SA 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/