The Kerman sheep is believed to be a hybrid between the Laristan mouflon (O. g. laristanica) and the Blanford urial (O. v. blanfordi), which occurs naturally in the Kerman region of southeastern Iran. It has 54 or 55 chromosomes and produces fertile offspring. Its winter coat is darker than that of the Laristan mouflon, and there is a white saddle patch but no bib. A black neck ruff is present, extending the full length of the neck in some animals but limited to just the lower half in others. The horns are homonymous, showing a flat frontal surface with sharp corners.