Fig. 11
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Formation of synspermia in Guaranita goloboffi. TEM. A, B Early synsperm with only loosely packed spermatids. C, D During further development, the spermatids become more densely packed within the synsperm. Note the increasing compactness of the synsperm and the occurrence of membranous remains and secretions in the cytoplasm