Published in Biol Bull, in 2004, in volume 206, pages 95-102

Created: 2010-01-07, modified: 2011-06-21

Published in Biol Bull, in 2000, in volume 198, pages 26-28

Created: 2010-01-07, modified: 2011-06-21

Published in Zoological Science, in 1992, in volume 9, pages 649-657

Created: 2012-09-19, modified: 2012-09-19