This paper concerns the differentiation process of germ cells from oogonia to primary
follicles in the lizard Podarcis sicula. The study was carried out at the morphological level
and using a cytophotometric analysis for determining the number of differentiating germ cells
undergoing degeneration. The progressive disorganization of the germ cell clusters during
the early diplotene stage and the role played by the prefollicular cells during this process are
described. Oocyte degeneration has been observed between the mid-zygotene and the …