Setchell, W.A. & Gardner, N.L., 1924
Setchell, W.A. & Gardner, N.L. (1924). XXIX Expedition of the California Academy of Sciences to the Gulf of California in 1921. The marine algae. Proceedings of the California Academy of Science, Fourth Series 12(29): 695-949, pls 12-88, map.
"May 13, 1924"
Title on paper cover: "New marine algae from the Gulf of California"