As a sample of the constitution of a clan I give in the Appendix a list of all the families and branches of the Lushei clan. My enquiries lead me to believe that practically all the clan and a great many of the family and branch names are eponyms. In some cases the name of a village site has been given to its inhabitants, first probably by outsiders and eventually adopted by the people themselves, but even in these cases as often as not enquiry will show that the village site was first named after some famous chief who lived there. Before the Thangur chiefs had risen to their present predominant position there were many consanguineous communities scattered over the hills, living under headmen of their own and each using a dialect of its own. Some of these communities appear to have had separate corporate existence for long periods and in consequence to have been sub-divided into many families and branches, while others were quickly absorbed by the Thangur and consequently have few sub-divisions. I have been accused of deriving "Lushei" from "lu," head, and "shei," long. If in the salad days of my sojourn among these folks I was ever guilty of this folly, I hereby publicly repudiate it. There is no doubt that Lushei, in common with the other clan names, is an eponym. A versatile and imaginative writer has recently derived "Sailo," the name of the branch of the Lushai clan to which the present chiefs belong, from "sai" elephant, and "lo," a jhum, alleging that because the elephant is the biggest animal, therefore "Sailo" means the biggest jhum and that the name refers to the excellence of the jhum land between Burkhal and the source of the Kornaphuli river, where he says the Sailos formerly lived. There are some objections to this theory; to begin with, the Lushais never use "sai" as a prefix meaning greatness, and secondly half the area mentioned was never inhabited by Sailo chiefs, and thirdly only a small and little considered branch of the great Sailo family ever entered this land of fatness and not till long after the family name had been generally accepted; further the name of the common ancestor of all the Sailo chiefs is known to have been Sailova, which is a common name still in the family.