New collection efforts in the limestone caves of Parque Nacional Cavernas do Peruaçu, Minas Gerais state, Brazil, has brought to light specimens belonging to three orthalicoid land snail species previously unrecorded from that state: Kora nigra Simone, 2015 and Kora rupestris Salvador & Simone, 2016 (Bulimulidae), and Leiostracus subtuszonatus (Pilsbry, 1899) (Simpulopsidae). All the above species were previously known from very restricted areas or just from their type locality. A possible record of Streptartemon aff. cookeanus (F. Baker, 1914) (Streptaxidae) is also reported herein.