Neoporteria nidus f. densispina (Y.Itô) Donald & G.D.Rowley in Cact. Succ. J. Gr. Brit. 28: 57. 1966
Neoporteria nidus f. densispina in Cact. Succ. J. Gr. Brit. 28: 57. 1966
is new combination for Neoporteria densispina, Explan. Diagr. Austroechinocactinae: 293. 1957