Published in Zoological Science, in 1993, in volume 10, pages 813-818
Created: 2012-09-19, modified: 2012-09-19![](https://www.biodiversitylibrary.org/pagethumb/40518597,60,60)
Published in Zoological Science, in 1994, in volume 11, pages 725-730
Created: 2012-09-19, modified: 2012-09-19![](https://www.biodiversitylibrary.org/pagethumb/1533524,60,60)
Published in Biol Bull, in 2003, in volume 205, pages 261-275
Created: 2010-01-07, modified: 2011-06-21