The distinction between retractor and protractor muscles of the freshwater snail's male organ has no physiological basis
de Boer, P. A. C. M., Jansen, R. F., ter Maat, A., van Straalen, N. M., Koene, J. M.Volume:
213
Language:
english
Journal:
Journal of Experimental Biology
DOI:
10.1242/jeb.034371
Date:
January, 2010
File:
PDF, 159 KB
english, 2010