וּבְנֵ֖י חָ֑ם כּ֥וּשׁ וּמִצְרַ֖יִם וּפ֥וּט וּכְנָֽעַן׃
At ang mga anak na lalaki ni Cham: sina Cush, at Mizraim, at Put, at Canaan.
Cassuto
Kush It would be difficult to associate this Kush with the well-known Kush dwelling to the south of Egypt, or with the Kushites that ruled over south Mesopotamia for a lengthy period of time during the second half of the second century BCE. It is more probable that the reference is to western Semitic tribes described as Kwshhw in the second collection of Egyptian execration texts which date back to the second half of the nineteenth century BCE. It appears that these tribes dwelled in the south of the land of Israel or of Jordan and were eventually absorbed by Midian (compare, a Kushite woman, in Numbers 12:1; and the mention of Kushan parallel to Midian in Habakkuk 3:7).
Sforno
ופוט וכנען, the sons of Put are not mentioned separately, as they all formed a single nation retaining the name of their founding father. Proof of this is found in Ezekiel 38,5 פרס, כוש, ופוט אתם, i.e. even in the days of the pre-messianic wars of Gog and Magog, Put will still have its original name.
Radak
ובני חם, Cham is mentioned after Yaphet; if Yaphet was the junior of the three sons, he was mentioned ahead of Cham because of his superior character qualities. If he was older than Cham, he would qualify for earlier mention on that account alone. The Torah left the list of the descendants of Shem last, in order to preserve the continuity of the report which continues with the lives of the patriarchs who are all descendants of Shem.