Here, I focus my research on describing a kinship system constituted by a specific organization in which a biocultural articulation operates. Kinship does not consist exclusively of biological elements, or more exactly genetic ones, nor only of social or cultural determinants. Family relations constitute and develop in an interface between the biogenetic and sociocultural planes, forming a complex system that we call kinship. In some way, biological behaviour is culturally regulated, at the same time as a cultural norm is imposed by the genetics of the species. From the assembly of genetic and cultural components emerges kinship.