Rousettus aegyptiacus is active throughout the year in Turkey, where its morphology was studied collected from three localities in the south-west. The characteristics of the Turkish population were similar to those of the nominative subspecies. Moderate differences between the sexes were found in tibia length and total body length. The karyotype is 2n= 36, FN= 70, FNa= 66. The X chromosome is a large metacentric/submetacentric, and the Y chromosome is a dot-like acrocentric.