Published in Zoological Science, in 1994, in volume 11, pages 441-444

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

Published in Zoological Science, in 1988, in volume 5, pages 1013-1018

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

Published in Zoological Science, in 1990, in volume 7, pages 551-555

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