Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 1-9

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 10-38

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 50-61

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 62-64

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 65-114

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 127-137

Published in Revue de Zoologie Africaine, in 1919, in volume 6, pages 138-144

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 171-180

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 229-240

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 241

Published in Revue Zoologique Africaine, in 1919, in volume 6, pages 243-250

Published in Revue Zoologique Africaine. Bruxelles, in 1919, in volume 7, pages 1-29

Published in Revue Zoologique Africaine, in 1919, in volume 7, pages 67

Published in Revue Zoologique Africaine, in 1919, in volume 7, pages 69-76

Published in Revue Zoologique Africaine, in 1919, in volume 7, pages 79-91

Published in Revue Zoologique Africaine, in 1919, in volume 7, pages 107-154

Published in Rev. Zool. Africaine, in 1919, in volume 7, pages 155-157

Published in Revue de Zoologie Africaine, in 1919, in volume 7, pages 158-161

Published in Revue Zoologique Africaine. Bruxelles, in 1919, in volume 7, pages 186-187