Fig. 23
From: Evolutionary morphology of sperm in pholcid spiders (Pholcidae, Synspermiata)
Spermiogenesis of Tolteca spp. TEM. A Tolteca sp. n. `Mex 169`. Early spermatid. Note the elevated NC. B Tolteca sp. n. `Mex 169`. Mid spermatid. C Tolteca sp. n. `Mex 169`. Late spermatid. Note the electron lucent cytoplasm. D Tolteca hesperia. Late spermatid, cross-section. Note the conspicuous longitudinal ridges along the prcN. E Tolteca hesperia. Coiled spermatid in the lumen of the testes. Note the heterogenous chromatin condensation pattern of the nucleus