Pseudoceramium clarionense (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov.

Ceramium clarionense Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 19: 170, pl. 7, figs 25-27 (Setchell & Gardner 1930).

TYPE LOCALITY. — Mexico. Revillagigedo Archipelago, Isla Clarión.

HOLOTYPE. — Mexico. Revillagigedo Archipelago, Isla Clarión, VI.1925, H.L. Mason no. 75 (holo-, CAS [CAS 173620]).