Fig. 50

Spermiogenesis of Aetana spp. TEM. A Aetana poring. Late spermatids, the peN begins twisting around the axoneme. B Aetana loboc. Late spermatid, longitudinal section. Note the centriolar adjunct material surrounded by the peN. C Aetana poring. Mid to late spermatid, part of the acrosomal complex and the short prcN with both centrioles. D Aetana poring. Mid to late spermatid, longitudinal section. Note the peN surrounding the axoneme and the centriolar adjunct material. E Coiled spermatid of Aetana poring, cross section. Inset: cross section through the peN of Aetana loboc at the same stage of spermiogenesis