Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 17-108

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 129-146

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 361-408

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 1-16

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 245-305

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 113-116

Published in Revue Suisse de Zoologie, in 1918, in volume 26, pages 409-415

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 117-127

Published in Revue Suisse De Zoologie, in 1918, in volume 26, pages 341-359

Published in Revue Suisse de Zoologie, in 1918, in volume 26, pages 309-340

Published in Revue Suisse de Zoologie, in 1918, in volume 26, pages 417-468