Ultrastructural description of spermiogenesis within the Mediterranean Gecko, Hemidactylus turcicus (Squamata: Gekkonidae)

► Spermiogenic cells develop following the general pattern of spermiogenesis described for vertebrates. ► Acrosome development is extremely complex similar to that of other Lepidosaurs. ► Manchette microtubules aid in the elongation of the nucleus throughout development. ► Germ cells associate with multiple Sertoli cells that may have different functions.