Published in Revue Suisse De Zoologie, in 1922, in volume 29, pages 133-145

Published in Revue Suisse De Zoologie, in 1922, in volume 29, pages 167-176

Published in Revue Suisse de Zoologie, in 1922, in volume 29, pages 177-226

Published in Revue Suisse De Zoologie, in 1922, in volume 29, pages 227-411