Cytological studies of certain desert mammals of Saudi Arabia. 6. First report on chromosome number and karyotype of Acomys dimidiatus.

The diploid chromosome number is 2n = 38. The fundamental number is 70. The autosomes consist of 11 pairs of metacentric, 5 pairs of submetacentric and 2 pairs of acrocentric chromosomes. The sex chromosomes are both acrocentric, the X-chromosome is the largest.