Kin Groups and Descent. The only corporate group among the Semang is the conjugal family. Many camps contain one or more extended families, but these are transitory entities, forming and breaking up as the component conjugal families move. There are no "bands" of fixed membership that always camp together. There are no descent groups or descent ideology.
Kinship Terminology. Semang relationship terminologies are bilaterally symmetrical. They merge sibling and cousin terms but distinguish collateral relatives at the +1 and — 1 generation levels. Cousin-sibling terms contain relative age distinctions. Some groups classify cousins as "older" and "younger" according to their ages relative to Ego and some according to the relative ages of the linking parents.