Affiliation: | 1. Boston University Marine Program, Marine Biological Laboratory , Woods Hole , MA , 02543 , USA E-mail: jripley@bu.edu plobel@bu.edu;2. Mechanosensory Physiology Laboratory , School of Biological Sciences, University of Kentucky , Lexington , KY , 40506 , USA E-mail: hyyanOO@pop.uky.edu |