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Fig. 59 | BMC Zoology

Fig. 59

From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)

Fig. 59

Spermiogenesis of Micropholcus fauroti. TEM. A Mid spermatids, cross section. Note the chromatin condensation pattern and the helical band (arrow). B Mid to late spermatid. Note the helical band of nuclear material on the surface of the prcN (arrows) and the short peN. C Late spermatids, cross section. The nuclear canal shifts into the periphery of the prcN as soon as it meets the implantation fossa. D Coiled spermatid. Note the electron dense content of the implantation fossa

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