Ultrastructure of spermiogenesis and spermatozoa of Polylabroides australis (Platyhelminthes, Monogenea, Polyopisthocotylea, Microcotyudae)K. Rohde and N.A. WatsonParasite, 1 2 (1994) 115-122DOI: https://doi.org/10.1051/parasite/1994012115