Karyotypes of P. zarathustra, P. arasbarani, P. lukhtanovi and P. shamil. a P. zarathustra, sample Z401, MI, n=24 b P. arasbarani arasbarani, sample N98, MI, n=24 c P. arasbarani neglectus, sample Q457, MI, n=ca25-26 d P. lukhtanovi, sample F875, MI, n=22 e P. lukhtanovi, sample H717, MI, n=21 f P. shamil, sample F958, MI, n=17. Bar = 10 μ.