Numbers 26:55

the land shall be divided by lot Since the distribution was to be proportionate the purpose of the lot must only have been to decide roughly in what part of the country each tribe was to settle.

according to the names of the tribes of their fathers they shall inherit The meaning is doubtful. -The names of the tribes of their fathers" appears to be a periphrasis for -their tribes." If so, the meaning is either that individualsshall in every case possess land within the region assigned to their tribe, or (perhaps better) that no smaller division than a whole tribe is to be taken account of in the general distribution, and the property of clansand familiesmust be settled privately within each tribe.