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