Fig. 46
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Spermiogenesis of Smeringopus cylindrogaster. TEM. AÂ Mid to late spermatid, cross-section. The IF is filled with microtubules. BÂ Late spermatid. Note that microtubules are still present inside the IF. CÂ Late spermatid, longitudinal section. Note the roundish appearance of the AV