SB 4.1.41

citraketuḥ surociś ca
 virajā mitra eva ca
ulbaṇo vasubhṛdyāno
 dyumān śakty-ādayo ’pare
citraketuḥ — Citraketu; surociḥ ca — and Suroci; virajāḥ — Virajā; mitraḥ — Mitra; eva — also; ca — and; ulbaṇaḥ — Ulbaṇa; vasubhṛdyānaḥ — Vasubhṛdyāna; dyumān — Dyumān; śakti-ādayaḥ — sons headed by Śakti; apare — from his other wife.
The names of these seven sages are as follows: Citraketu, Suroci, Virajā, Mitra, Ulbaṇa, Vasubhṛdyāna and Dyumān. Some other very competent sons were born from Vasiṣṭha’s other wife.

Ūrjā, who is sometimes known as Arundhatī and was the wife of Vasiṣṭha, was the ninth daughter of Kardama Muni.