Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 1-16

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 17-25

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 27-41

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 43-48

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 49-65

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 67-74

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 303-352

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 353-388

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 389-437

Published in Revue Suisse De Zoologie, in 1928, in volume 35, pages 439-471

Published in Revue Suisse de Zoologie, in 1928, in volume 35, issue 17, pages 291-302