Published in Biol Bull, in 1985, in volume 169, pages 565-577

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

Published in Biol Bull, in 2004, in volume 206, pages 25-34

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

Published in Zoological Science, in 1993, in volume 10, pages 267-273

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

Published in Zoological Science, in 1989, in volume 6, pages 329-333

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