Fig. 38
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Spermiogenesis and cleistospermia of Modisimus elongatus. TEM. AÂ Early spermatids, showing a heterogenous condensation pattern. BÂ Late spermatid, cross-section. The centriolar adjunct material begins to develop at this stage, as visible by the peculiar electron-dense material surrounding the axoneme. CÂ Cleistosperm. Note the heterogenous cytoplasm with the prominent aggregation of mitochondria. DÂ Cleistosperm. The centriolar adjunct material is visible as well as the position of the nuclear canal in a projection along the peN