Published in Biol Bull, in 1959, in volume 117, pages 125-132

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

Published in Proceedings of The Biological Society of Washington, in 1976, in volume 88, pages 423-425

Created: 2011-06-10, modified: 2011-06-21

Published in Proceedings of The Biological Society of Washington, in 2004, in volume 117, issue 1, pages 23-34

Created: 2011-07-27, modified: 2012-04-30

Published in Proceedings of The California Academy of Sciences, in 2004, in volume 55, issue 15, pages 338-357

Created: 2019-01-02, modified: 2019-01-02