Stirkia horrida (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov.

Ceramium horridum Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 12: 777, pl. 26, figs 49, 50, pl. 79 (Setchell & Gardner 1924).

TYPE LOCALITY. — Mexico. Sonora, Guaymas.

HOLOTYPE. — Mexico. Sonora, Guaymas, V.1917, Marchant no. 91 (holo-, UC [UC1462246]).