The authors review and provide an alternative to Levi-Strauss's theory on unilateral cross-cousin marriage. Levi-Strauss theorized that matrilateral cross-cousin marriage (males marrying their maternal uncles' daughters) occurs more than the patrilateral form because the former promotes more "roundabout" woman-giving and overall social solidarity. He also states that the form of cross-cousin marriage does not depend on kinship linearity. In contrast, the present authors hypothesize that, among societies with unilateral cross-cousin marriage, patrilineal societies will have matrilateral cross-cousin marriage and matrilineal societies will have the patrilateral form. To justify their prediction, the authors point to the close, informal relationships fostered between males and their maternal uncles in patrilineal societies and between males and their paternal aunts in matrilineal societies.