ity ādyā daśa tat-sutāḥ

caturtha-the fourth Manu; uttama-bhrata-the brother of Uttama; manuh-became the Manu; namna-celebrated by the name; ca-also; tamasah-Tamasa; prthuh-Prthu; khyatih-Khyati; narah-Nara; ketuh-Ketu; iti-thus; adyah-headed by; dasa-ten; tat-sutah-sons of Tamasa Manu.