Published in Biol Bull, in 1953, in volume 104, pages 439-444

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

Published in Annals of the Missouri Botanical Garden, in 1952, in volume 39, pages 65-96

Created: 2010-01-08, modified: 2015-12-16

Published in Zeitschrift für Säugetierkunde, in 1997, in volume 62, pages 293-302

Created: 2016-08-03, modified: 2016-08-03