Numbers 26:36

ואלה בני שותלח וגו׳ AND THESE ARE THE SONS OF SHUTHELAH etc. — As for the other sons of Shuthelah their offspring were called after Shuthelah’s name; but out of Eron there issued a large family which was therefore called after his own name so that the children of Shuthelah were reckoned as two different families (the family of Shuthelah and the family of Eron). — Go and reckon and you will find in this section fifty seven families, and of the sons of Levi eight, so that there are sixty five in all. This is the meaning of what is said, (Deuteronomy 7:7): “For you are the least (המעט) [of all the peoples etc.].” The word המעט may be taken to signify: you are five (ה) less (מעט) than the families of all the nations, who are seventy in number. This, also, I understand from the work of R. Moses the Preacher, only that I have been compelled to omit from or add to his words.

וְאֵ֖לֶּה בְּנֵ֣י שׁוּתָ֑לַח לְעֵרָ֕ן מִשְׁפַּ֖חַת הָעֵרָנִֽי׃

And these are the sons of Shutelaĥ: of ῾Eran, the family of the ῾Erani.