Descendants of Shelah, son of Judah. Nu 26:20. Apparently called Shilonites in 1Ch 9:5.
And the sons of Judah according to their families were: of Shelah, the family of the Shelanites; of Perez, the family of the Perezites; of Zerah, the family of the Zerahites.
And of the Shilonites: Asaiah the first-born, and his sons.