Published in Revue Suisse De Zoologie, in 1941, in volume 48, pages 143-199

Published in Revue Suisse De Zoologie, in 1941, in volume 48, issue 1, pages 1-88

Published in Revue Suisse De Zoologie, in 1941, in volume 48, issue 2, pages 339-357

Published in Revue Suisse De Zoologie, in 1941, in volume 48, issue 2, pages 377-408

Published in Revue Suisse De Zoologie, in 1941, in volume 48, issue 2, pages 413-482

Published in Revue suisse de zoologie, in 1941, in volume 48, issue 6, pages 359-376

Published in Revue Suisse de Zoologie, in 1941, in volume 48, issue 22, pages 569-714