Fig. 47
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Ultrastructure and 3D surface reconstruction of cleistospermia of Smeringopus cylindrogaster. A, B Cleistospermia in the lumen of the deferent duct. Note the small amount of slightly electron dense material in the IF as well as the aggregation of electron dense material in the cytoplasm (A). C, D, E, F 3D surface reconstruction of a cleistosperm