The Septuagint also adds a generation, Cainan, between Arphaxad and Salah.
Second generation (e.g., Arphaxad, Cush): ~9,300 BCE.
10These are the generations of Shem: Shem was 100 years old, and begat Arphaxad two years after the flood:
11And Shem lived after he begat Arphaxad five hundred years, and begat sons and daughters.12And Arphaxad lived five and thirty years, and begat Salah:13And Arphaxad lived after he begat Salah 403 years, and begat sons and daughters.14And Salah lived thirty years, and begat Eber:15And Salah lived after he begat Eber 403 years, and begat sons and daughters.16And Eber lived four and thirty years, and begat Peleg:17And Eber lived after he begat Peleg 430 years, and begat sons and daughters.18And Peleg lived thirty years, and begat Reu:19And Peleg lived after he begat Reu 209 years, and begat sons and daughters.20And Reu lived two and thirty years, and begat Serug:21And Reu lived after he begat Serug 207 years, and begat sons and daughters.22And Serug lived thirty years, and begat Nahor:23And Serug lived after he begat Nahor 200 years, and begat sons and daughters.24And Nahor lived nine and twenty years, and begat Terah:25And Nahor lived after he begat Terah 119 years, and begat sons and daughters.26And Terah lived seventy years, and begat Abram, Nahor, and Haran.27Now these are the generations of Terah: Terah begat Abram, Nahor, and Haran; and Haran begat Lot.28And Haran died before his father Terah in the land of his nativity, in Ur of the Chaldees.
Arphaxad
His descendants are listed with significant individuals and groups, like Elam, Asshur, Arphaxad, and others, leading down to Abraham and his descendants, which include Isaac and Jacob (Israel).
1Now these are the generations of the sons of Noah, Shem, Ham, and Japheth: and unto them were sons born after the flood.2The sons of Japheth; Gomer, and Magog, and Madai, and Javan, and Tubal, and Meshech, and Tiras.3And the sons of Gomer; Ashkenaz, and Riphath, and Togarmah.4And the sons of Javan; Elishah, and Tarshish, Kittim, and Dodanim.5By these were the isles of the Gentiles divided in their lands; every one after his tongue, after their families, in their nations.6And the sons of Ham; Cush, and Mizraim, and Phut, and Canaan.7And the sons of Cush; Seba, and Havilah, and Sabtah, and Raamah, and Sabtecha: and the sons of Raamah; Sheba, and Dedan.8And Cush begat Nimrod: he began to be a mighty one in the earth.9He was a mighty hunter before the LORD: wherefore it is said, Even as Nimrod the mighty hunter before the LORD.10And the beginning of his kingdom was Babel, and Erech, and Accad, and Calneh, in the land of Shinar.11Out of that land went forth Asshur, and builded Nineveh, and the city Rehoboth, and Calah,12And Resen between Nineveh and Calah: the same is a great city.13And Mizraim begat Ludim, and Anamim, and Lehabim, and Naphtuhim,14And Pathrusim, and Casluhim, (out of whom came Philistim,) and Caphtorim.15And Canaan begat Sidon his firstborn, and Heth,16And the Jebusite, and the Amorite, and the Girgasite,17And the Hivite, and the Arkite, and the Sinite,18And the Arvadite, and the Zemarite, and the Hamathite: and afterward were the families of the Canaanites spread abroad.19And the border of the Canaanites was from Sidon, as thou comest to Gerar, unto Gaza; as thou goest, unto Sodom, and Gomorrah, and Admah, and Zeboim, even unto Lasha.20These are the sons of Ham, after their families, after their tongues, in their countries, and in their nations.21Unto Shem also, the father of all the children of Eber, the brother of Japheth the elder, even to him were children born.22The children of Shem; Elam, and Asshur, and Arphaxad, and Lud, and Aram.23And the children of Aram; Uz, and Hul, and Gether, and Mash.24And Arphaxad begat Salah; and Salah begat Eber.25And unto Eber were born two sons: the name of one was Peleg; for in his days was the earth divided; and his brother's name was Joktan.26And Joktan begat Almodad, and Sheleph, and Hazar-maveth, and Jerah,27And Hadoram, and Uzal, and Diklah,28And Obal, and Abimael, and Sheba,29And Ophir, and Havilah, and Jobab: all these were the sons of Joktan.30And their dwelling was from Mesha, as thou goest unto Sephar a mount of the east.31These are the sons of Shem, after their families, after their tongues, in their lands, after their nations.32These are the families of the sons of Noah, after their generations, in their nations: and by these were the nations divided in the earth after the flood.
Arphaxad: Arphaxad was an ancestor of several Semitic peoples.
Arphaxad is next in line.