Variants of the Alexandromys evoronensis karyotype of the chromosomal race “Argi”. The square shows variable chromosomes a 2n = 36a, male, laboratory-bred from population No. 7 b 2n = 36b, # 4557 female from population No. 6 c 2n = 36c, male laboratory-bred from population No. 7 d 2n = 36d, # 4567 female, the square shows variable pair Mev17/18, and 17.18 e 2n = 37a, # 4554 male, population No. 6 the square shows rearrangement in Mev4, and heterozygous Mev13.15, 13/15 f 2n = 34a, # 4553 female, population No. 6, the square shows tandem translocation pairs Mev 6, 7 and 14 in heterozygous state.