Published in Sitzungsberichte der Gesellschaft Naturforschender zu Berlin, in 1893, in volume 1893, pages 107-114

Created: 2012-01-18, modified: 2012-01-18

Published in Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, in 1893, in volume 1893, pages 170-175

Created: 2010-06-27, modified: 2023-02-16