Matsya Purana 195.32

195.32

bhṛguśca cyavanaścaiva āpnuvānastathaiva ca.
parasparamavaivāhyā ṛṣayaḥ parikīrtitāḥ .. 195.32

Now listen to the other descendants of Bhrıgu, which I shall relate (These are) Jamadagnı Vıda, Paulastya, Vaıjavrıta, Rıṣı Ubhayajâta, Kiyanı, Śâkaṭîyana, Aurveya and Mâıuta, are of all the most excellent Pravaras Bhrıgu Chyavana, and Âpnuvana cannot ıntermarry among themselves—30 32