SB 4.1.35
tat-putrav aparav astam
khyatau svarocise ’ntare
utathyo bhagavan saksad
brahmisthas ca brhaspatih
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Besides these four daughters, she also had another two sons. One of them was known as Utathya, and the other was the learned scholar Brhaspati.