Published in Revue Suisse De Zoologie, in 1899, in volume 6, pages 1-171

Published in Revue Suisse De Zoologie, in 1899, in volume 6, pages 173-187

Published in Revue Suisse De Zoologie, in 1899, in volume 6, pages 189-198

Published in Revue Suisse de Zoologie, in 1899, in volume 6, pages 199-210

Published in Revue Suisse de Zoologie, in 1899, in volume 6, pages 273-362

Published in Revue Suisse De Zoologie, in 1899, in volume 6, pages 363-367

Published in Revue Suisse de Zoologie, in 1899, in volume 6, pages 369-426

Published in Revue Suisse De Zoologie, in 1899, in volume 6, pages 427-428

Published in Revue Suisse De Zoologie, in 1899, in volume 6, pages 557-636

Published in Revue Suisse De Zoologie, in 1899, in volume 7, pages 321-330

Published in Revue Suisse de Zoologie, in 1899, in volume 7, pages 335-340

Published in Revue Suisse De Zoologie, in 1899, in volume 7, pages 341-351