Abstract
Standard karyotypes and NOR chromosomal localizations were compared in species of the genera Eumeces and Scincus. A remarkable karyological heterogeneity was revealed within the genus Eumeces, as well as a resemblance between the karyotypes of some Palaearctic species of this genus (E. schneidern, E. algeriensis) and those of species of the genus Scincus (S. scincus and S. hem‐prichii). An XY sex‐chromosome NOR‐associated heteromorphism was identified in S. scincus.