Malacocarpus muricatus (Link & Otto ex Pfeiff.) Britton & Rose, Cactaceae 3: 194–195, f. 207. 1922
Malacocarpus muricatus, Cactaceae 3: 194–195, f. 207. 1922
is new combination for Echinocactus muricatus, Enum. Diagn. Cact.: 49. 1837
Malacocarpus muricatus, Cactaceae 3: 194–195, f. 207. 1922
Taxon for this name