Skandapurana 1.4.11.177

1.4.11.177

apyannajaṃ ca manavo giriśeti ca nāma ca..
agastyo vrīhijaṃ vāpi suśāṃtamiti nāma ca.. 13.177 ..

and the Manus, one made of food, and the name “Dwelling on the Mountain”;
Agastya, one made of rice, and the name “Very Peaceful”;