Fig. 56
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Ultrastructure and 3D surface reconstruction of the cleistospermia of Leptopholcus guineensis. A Cleistosperm in the lumen of the deferent duct. Note the helical band (arrow) and the centrally situated nuclear canal. B Cleistosperm in the lumen of the deferent duct. Note the electron dense “water wheel” and the thin peN. C, D, E, F 3D surface reconstruction of a cleistosperm