Ultrastructure of sperm and spermatogenesis of Anoplodiscus cirrusspiralis (Platyhelminthes, Monogenea, Monopisthocotylea)N. A. Watson and K. RohdeAnn. Parasitol. Hum. Comp., 67 5 (1992) 131-140DOI: https://doi.org/10.1051/parasite/1992675131