A type of Karmādāna (occupation involving great violence and possession); trading in commodities like tusk, horns of animals, leather etc...
'daṃtavāṇijje'tti dantānāṃ - hastiviṣāṇānām upalakṣaṇatvādeṣāṃ carmacāmarapūtikeśādīnāṃ vāṇijyaṃ - krayavikrayo dantavāṇijyam.
(Bhaga 8.242 Vṛ)