Published in Frankfurt a Main Abhandlungen Senckenbergischen Gesellschaft, in 1913, in volume 34, pages 489-499

Published in Frankfurt a Main Abhandlungen Senckenbergischen Gesellschaft, in 1913, in volume 34, pages 449-488

Published in Abhandlungen Der Senckenbergischen Naturforschenden Gesellschaft, in 1913, in volume 35, pages 65-78