Spermiogenesis and the spermatozoon ultrastructure of Robphildollfusium fractum (Digenea: Gyliauchenidae), an intestinal parasite of Sarpa salpa (Pisces: Teleostei) - Bakhoum, A. J.; Sène, A.; Ndiaye, P. I.; Bâ, C. T.; Miquel, J. (Comptes Rendus Biologies, 2012)