Echinofossulocactus multicostatus f. zacatecasensis (Britton & Rose) P.V.Heath in Calyx 2: 87. 1992
Echinofossulocactus multicostatus f. zacatecasensis in Calyx 2: 87. 1992
is new combination for Echinofossulocactus zacatecasensis, Cactaceae 3: 113. 1922