Mbh 5.103.1a

“‘Narada said, “This foremost of cities that thou beholdest and which resembles the Amaravati of the chief of the celestials himself, is known by the name of Bhogavati. It is ruled over by Vasuki, the king of the Nagas. That Shesha dwelleth here, who, in consequence of his ascetic austerities of the foremost order, is able to support this earth with all her vastness. His body is like that of a white mountain. He is decked in celestial ornaments. He hath a thousand heads. His tongues are blazing like flames of fire, and he is endued with great strength. There dwell in happiness innumerable Nagas--sons of Surasa--possessed of diverse forms, and decked in ornaments of diverse kinds, bearing the signs of gems, Swastika, circles and drinking vessels. All of them endued with great strength are by nature fierce. Some have a thousand heads, some five hundred, and some three. And some have two heads, and some five, and some have seven faces. And all of them are possessed of huge bodies that resemble the mountains stretching over the earth. Millions and tens of millions are they, in fact, uncountable, even as regards those of them that belong to a single race. Listen, however, to me as I name a few of the more famous ones amongst them. They are Vasuki, Takshaka, Karkotaka, Dhanjaya, Kaliya, Nahusha, Aswatara, Vakyakunda, Mani, Apurana, Khaga, Vamana, Elapatra, Kukura, Kukuna, Aryaka, Nandaka, Kalasa, Potaka, Kalilasaka, Pinjaraka, Airavata, Sumanmukha, Dadhimukha, Sankha, Nanda, Upanandaka, Apta, Kotaraka, Sikhi, Nishthuraka, Tittiri, Hastibhadra, Kumuda, Maylapindaka, the two Padmas, Pundarika, Pushpa, Mudgaraparnaka, Karavira, Pitharaka, Samvritta, Vritta, Pindara, Vilwapatra, Mushikada, Sirishaka, Dilipa, Sankha-sirsha, Jyotishka, Aparajita, Kauravya, Dhritarashtra, Kuhara, Krisaka, Virajas, Dharana, Savahu, Mukhara, Jaya, Vidhira, Andha, Visundi, Virasa, and Sarasa. These and many others there are amongst the sons of Kasyapa.