Coryphantha elephantidens (Lem.) Lem. Coryphantha elephantidens (Lem.) Lem., Cactées: 35. 1868 sec. Guzmán & al. 2003≡Mammillaria elephantidens Lem., Cact. aliq. nov.: 1. 1838 syn. sec. Guzmán & al. 2003