Fig. 16
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Ultrastructure and 3D surface reconstruction of the synsperm of Guaranita goloboffi. A Synsperm in the lumen of the deferent duct. Note the multilayered secretion sheath. B Sperm cells within the synsperm. Note the triangular shape of the peN. C , D, E 3D surface reconstruction of the synsperm. F Individual sperm cell