NB pdf
- IRScNB_P4087_RBINS16934_18_Bulletin 31.pdf
- Bulletin of the Royal Belgian Natural History Museum. 1930-1948 / 18 - 1942 Conrad, W. 1942. Notes protistologiques. XXV. A propos des genres Kephyrion Pascher, 1913 et Pseudokephyrion Pascher, 1913.