Pelecyphora aselliformis Ehrenb., Bot. Zeitung 1: 737. 1843.

Ariocarpus aselliformis = Ariocarpus aselliformis (Ehrenb.) F.A.C.Weber, Dict. Hort. 2: 931. 1898. Anhalonium aselliforme (Ehrenb.) F.A.C.Weber, Dict. Hort. 2: 931. 1898. Type: México, San Luis Potosí, 18 miles [28.96 km] north of San Luis Potosí, 31 Jul 1959, E. F. Anderson 1206 (neotype, designated by Anderson & Boke, Amer. J. Bot.: 325. 1969: POM [298106]).