gavādayo hi śabdā loke jātiśabdatayā pratītāḥ, citrāṅgadādayastu saṃjñāśabdatveneti pṛthagvacanam //
For words like 'cow' are known in the world as words denoting universals, while [words] like 'Citrāṅgada' [are known] as proper names - hence the separate mention.