All of them were Shuhamite clans, and their registration numbered 64,400.
This is the register of the tribes as they were now enrolled, in the same order that they were numbered in ch. 1. Observe, I. The account that is here kept of the families of each tribe, which must not be understood of such as we call families, those that live in a house together, but such as were the descendants of the several sons...
Commenting on Numbers 26:5-51
Num 26:42-43 The descendants of Dan formed only one family, named from a son of Dan, who is called Shuham here, but Hushim in Gen 46:23; though this family no doubt branched out into several smaller families, which are not named here, simply because this list contains only the leading families into which the tribes were divided.
Commenting on Numbers 26:42-43