Kalmar "Equus caballus przewalskii" tana nufin wani nau'in dokin daji, wanda kuma aka sani da dokin Przewalski ko dokin daji na Mongolian. Kalmar "Equus" ita ce Latin don "doki" kuma "caballus" kalma ce ta Latin don "doki na gida." Dokin Przewalski ana kiransa sunan mai binciken Rasha, Nikolai Przhevalsky, wanda ya fara bayyana dokin a cikin 1879. Wannan nau'in dokin daji na asali ne daga tsaunukan tsaunukan tsakiyar Asiya, kuma ana la'akari da kawai nau'in dokin daji na gaske har yanzu. p>