Published in Biol Bull, in 2001, in volume 201, pages 339-347

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

Published in Biol Bull, in 1998, in volume 194, pages 244-252

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

Published in Zoological Science, in 1993, in volume 10, pages 505-509

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

Published in Proceedings of The Biological Society of Washington, in 2001, in volume 114, pages 929-937

Created: 2011-05-09, modified: 2011-06-21