Mammillaria prolifera var. arachnoidea D.R.Hunt in Cact. Succ. J. Gr. Brit. 40(1): 11. 1978
Mammillaria prolifera var. arachnoidea in Cact. Succ. J. Gr. Brit. 40(1): 11. 1978
is basionym for Mammillaria prolifera subsp. arachnoidea, Mammillaria Postscripts 6: 6. 1997
is basionym for Escobariopsis prolifera subsp. arachnoidea in Sukkulenty 3: 41. 2000