| spermatogenesis in octomacrum lanceatum (monogenoidea, oligonchoinea, mazocraeidea). | ultrastructural aspects of spermatozoon development and morphology in octomacrum lanceatum are presented. spermiogenesis involves development of zones of differentiation from the surface of cytophores followed by formation of a middle cytoplasmic process and 2 free flagella whose axonemes form from basal bodies located within each zone of differentiation. the mitochondrion and nucleus penetrate through the zone of differentiation into the middle cytoplasmic process. an intercentriolar body is pr ... | 1995 | 8550291 |