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PACIFIC SCIENCE, Vol. XV, July 1961 
C odium cuneatum Setchell & Gardner 
Dawson, 1954; Dawson, Neushul, Wildman, 
I960, I960* 
San Pedro, Calif., to southern Baja Calif; Gulf 
of Calif. 
C odium decorticatum (Woodward) Howe 
Dawson, 1954 
Isla Clarion, Revillagigedo Arch. 
Codium dichotomum (Hudson) S. F. Gray 
Taylor, 1945; Dawson, 1954 
Isla Guadalupe; Isla Cedros to Isla Magdalena, 
Baja Calif.; Mazatlan, Sinaloa; Galapagos 
Arch. 
Codium fernandezianum Setchell 
Taylor, 1945; Dawson, 1954 
Bahia Santa Maria, Baja Calif.; Guayas, Ecua- 
dor 
Codium foveolatum Howe, prox. 
Taylor, 1945 
Galapagos Arch. 
Codium fragile (Suringar) Hariot 
Scagel, 1957; Dawson, 1954, 1959c 
Sitka, Alaska, to Bahia Asuncion, Baja Calif. 
Codium geppii O. C. Schmidt, complex 
Dawson, 1959^ 
Clipper ton I. 
Codium hubbsii Dawson 
Dawson, 1954; Dawson, Neushul, Wildman, 
I960 
Santa Catalina I., Calif., to Bahia Asuncion, 
Baja Calif.; Isla Guadalupe, Baja Calif. 
Codium isabelae Taylor 
Dawson, 1954 
Isla Clarion, Revillagigedo Arch.; La Paz, Baja 
Calif. 
Codium johnstonei Silva 
Dawson, 1954 
Santa Cruz I., Calif, to Islas Coronados, Baja 
Calif. 
Codium longiramosum Setchell & Gardner 
Dawson, 1954 
Isla Pond, Gulf of Calif.; Isla Clarion, Revil- 
lagigedo Arch.; Bahia Petatlan, Guerrero 
Codium macdougalii Dawson 
Dawson, 1954 
Puerto Libertad, Sonora 
Codium magnum Dawson 
Dawson, 1954 
Bahia San Quintin, Baja Calif. 
Codium palmeri Dawson 
Dawson, 1954 
Isla Guadalupe, Baja Calif. 
Codium santamariae Taylor 
Taylor, 1945 
Galapagos Arch,; Guayas, Ecuador 
Codium setchellii Gardner 
Dawson, 1954; Scagel, 1957; Dawson, 1957, 
195 9c; Dawson, Neushul, Wildman, I960, 
1960* 
Sitka, Alaska, to Punta Abreojos, Baja Calif.; 
Rocas Alijos 
Codium simulans Setchell & Gardner 
Dawson, 1954, 1959 
Ensenada ?; Isla Guadalupe ?; Punta Santa 
Rosalia, Baja Calif.; Gulf of Calif.; Isla 
Clarion, Revillagigedo Arch. 
Codium ritteri Setchell & Gardner 
Scagel, 1957 
Kodiak I., Alaska, to Vancouver I., British 
Columbia 
Halimeda discoidea Decaisne 
Dawson, 1954, 1957£, 1959 
Isla Magdalena, Baja Calif.; Isla Angel de la 
Guarda, Gulf of Calif., to Golfo Duke, 
Costa Rica 
Halimeda opuntia (Linnaeus) Lamouroux 
Dawson, 1954 
Isla Guadalupe, Baja Calif.; Isla Clarion, Re- 
villagigedo Arch. 
