(c) Polyandrous Family: It is composed of one woman and more than one husband.
Polyandrous family is of two types – (i) Fraternal Polyandry, (ii) Non-fraternal Polyandry.
In this family, the emphasis is on the conjugal bond.
Conjugal family is prevalent among the most of the tribes in India.
(c) Extended Family: When the nuclear family is extended by the addition of closely related kin, it is called the extended family.
It is composed of aunts, grandparents, grand children etc.The basis of every human society whether primitive or modern is the family.It is found, in one form or other, in all cultures and among all groups of people.(iv) At least one member of the family has to be bread earner for all the members. Tribal societies have a simple social organisation. Tribal families have been classified on the following important basis.(a) Monogamous Family: This family is composed of one husband and one wife.(b) Matrilineal Family: The family in which descent is traced through the mother and in which females inherit property is called a matrilineal family.The Garo and the Khasi families of Assam may be cited as examples of this type of family.In fraternal polyandry husbands of a woman are brothers. In non-fraternal polyandry husbands of a woman are not related to each other.(a) Nuclear Family: It consists of both couple and their unmarried children.The matrilocal family is found among Khasi, for example.(a) Patriarchal Family: In this type of family, the father enjoys supreme power.