Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 1-17

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 19-59

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 61-63

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 65-98

Published in Rev. suisse zool., in 1919, in volume 27, pages 99-234

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 235-242

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 243-282

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 283-333

Published in Revue Suisse de Zoologie, in 1919, in volume 27, pages 347-351

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 353-376

Published in Revue Suisse de Zoologie, in 1919, in volume 27, pages 377-404

Published in Revue Suisse De Zoologie, in 1919, in volume 27, pages 405-473