Kin Groups and Descent. The Gonds have a pronounced patrilineal and patriarchal clan system. They call it gotra or kur. A Gond clan comprises a group of persons who believe that they are descendants in the male line from a common ancestor. While a male can never change his clan, a woman on marriage is taken into the clan of her husband. The Gonds practice clan exogamy, considering intermarriage within a clan to be incest. They believe the gods would punish such a sin with a skin disease, worms in a wound, or leprosy. Offenders against the law of exogamy are excluded from the tribal community and can only be readmitted after separation. Many of the Gond clans bear animal or plant names, which suggests a totemic origin of the clans, and some Gond clans still observe totemic taboos. But generally, except for the observance of exogamy, the clan system has no important function. In the Mandla District at least, eighteen clans have been combined into a phratry. The combination of the clans varies locally, but the number—eighteen—is always retained. The phratry too observes exogamy, but with the payment of a fine the marriage prohibition can be waived.