Matsya Purana 202.4

202.4

parasparamavaivāhyā ṛṣayaḥ parikīrtitāḥ.
paurṇamāsāḥ pāraṇāśca ārṣeyāḥ parikīrtitāḥ .. 202.4 ..

Matsya said:—"Now hear about the Brâhmaṇas born in the Agastya family They are—Agastya, Karambha, Kausilya, Sâkata, Samedha, Mayobhuva Gândhârakâyana and those born in the Pulastya Pulaha and Kratu families are known also as Agastyas all of them have three Pravaras, Agastya, Paurṇamâsa and Pârana. These Ṛiṣis do not intermarry amongst each other Those of the Agastya, Paurṇamâsa and Pârana families do not also intermarry—1-4