Charak Samhita
सर्पो गौधेर(य)को नाम गोधायां स्याच्चतुष्पदः । कृष्णसर्पेण तुल्यः स्यान्नाना स्युर्मिश्रजातयः ॥१३४॥
Quadruped serpent borne by a godha (type of reptile) is known as gaudheyaka. This is similar to the darveekara sarpa. Besides there are several other cross breeds seen in this variety.
english translation
sarpo gaudhera(ya)ko nAma godhAyAM syAccatuSpadaH । kRSNasarpeNa tulyaH syAnnAnA syurmizrajAtayaH ॥134॥
hk transliteration by Sanscript