Published in Zoological Science, in 1992, in volume 9, pages 413-421

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

Published in Zoological Science, in 1990, in volume 7, pages 435-441

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

Published in Zoological Science, in 1994, in volume 11, pages 713-716

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