Shem. Note the Asyndeton (App-6) here, and contrast the Polysyndeton of Genesis 7:13. This order in Genesis 5:32; Genesis 6:10; Genesis 6:7; Genesis 6:13. Gen 9:18. 1 Chronicles 1:4.
Japheth, the eldest, 1 Chronicles 1:5. 1Ch 10:21.
Ham, second, Genesis 9:24. "Younger" than Japheth.
Shem, the youngest. Compare Genesis 5:32 with Genesis 11:10. Last here (in Introversion) because his history is to be continued. Japheth. enlargement. Ham. Heat, Black. Shem. Name or Renown.