Published in Zoological Science, in 1989, in volume 6, pages 721-730

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

Published in Biol Bull, in 1973, in volume 145, pages 532-547

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

Published in Biol Bull, in 1980, in volume 159, pages 376-393

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

Published in Zoological Science, in 1994, in volume 11, pages 667-674

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

Published in Zoological Science, in 1993, in volume 10, pages 275-279

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