Shem. Note the Asyndeton (App-6) here, and contrast the Polysyndeton of Gen_7:13. This order in Gen_5:32; Gen_6:10; Gen_6:7. Gen_6:13; Gen_9:18. 1Ch_1:4.
Japheth, the eldest, 1Ch_1:5. 1Ch_10:21.
Ham, second, Gen_9:24. "Younger" than Japheth.
Shem, the youngest. Compare Gen_5:32 with Gen_11:10. Last here (in Introversion) because his history is to be continued. Japheth = enlargement. Ham = Heat, Black. Shem = Name or Renown.