SB 4.13.17
ulmuko ’janayat putran
puskarinyam sad uttaman
angam sumanasam khyatim
kratum angirasam gayam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Of the twelve sons, Ulmuka begot six sons in his wife Puskarini. They were all very good sons, and their names were Anga, Sumana, Khyati, Kratu, Angira and Gaya.