Benthic Algae— -D awson 
441 
Ceramium ornatum Setchell & Gardner 
Dawson, 1954 
Isia Guadalupe, Baja Calif. 
Ceramium pacificum (Collins) Kylin 
Scagel, 1957; Dawson, 1954, 1959 c\ Dawson, 
Neushul & Wildman, I960 
Northern British Columbia to Punta Maria, 
Baja Calif. 
Ceramium paniculatnm Okamura 
Dawson, 1954, 1959 
Guaymas, Sonora, to Mazatlan, Sinaloa 
Ceramium personatum Setchell & Gardner 
Taylor, 1945; Dawson, 1954 
Isla Guadalupe; vicinity of Punta Santa Ro- 
salia, Baja Calif.; Puerto Parker, Costa 
Rica ? 
Ceramium procumbens Setchell & Gardner 
Hollenberg, 1948; Dawson, .1954, 1959, 
1960^ 
Southern Calif, to Punta Santa Rosalia, Baja 
Calif.; Gulf of Calif.; Bahia Ballena, Costa 
Rica 
Ceramium recticorticum Dawson 
Dawson, 1954 
Guaymas, Sonora; Mazatlan, Sinaloa 
Ceramium rubrum (Hudson) C. Agardh 
Scagel, 1957 
Bering Sea to northern Wash. 
Ceramium serpens Setchell & Gardner 
Dawson, 1949*, 1954, 1957 
Gulf of Calif.; Clipperton I. ?; Galapagos 
Arch. ? 
Ceramium sinicola Setchell & Gardner var. j ini- 
cola 
Dawson, 1954, 1957, 1959 
Southern Calif, and Pacific Baja Calif.; Rocas 
Alijos; Isla San Benedicto, Revillagigedo 
Arch.; northern Gulf of Calif. 
Ceramium sinicola var. interrupta (Setchell & 
Gardner) Dawson 
Hollenberg, 1948; Dawson, 1954, 1959 
Same range as the species 
Ceramium sinicola var. johnstonii ( Setchell & 
Gardner) Dawson 
Dawson, 1954 
Same range as the species 
Ceramium strictum Harvey 
Dawson, 1950c (as probably referable to C. 
gardneri) ; Scagel, 1957 
Southern British Columbia 
Ceramium taylorii Dawson 
Taylor, 1945 (as C. fasti giatum ) ; Dawson, 
1954, 1954c, 1957 b, 1959 
Laguna Beach, Calif., to Bahia Magdalena, 
Baja Calif.; Gulf of Calif, to Acapulco, 
Guerrero; Isla San Benedicto, Revillagi- 
gedo Arch.; Golfo de Nicoya, Costa Rica; 
Galapagos Arch. ? 
Ceramium templetonii Setchell & Gardner 
Setchell & Gardner, 1937; Dawson, 1957 
Galapagos Arch. 
Ceramium v a gab unde Dawson 
Dawson, 1954c (as Ceramium sp.) , 1957*, 
1957 b 
Isla San Benedicto, Revillagigedo Arch.; 
Golfo Duke, Costa Rica 
Ceramium viscainoense Dawson 
Dawson, 1954 
Punta Santa Rosalia, Baja Calif. 
Ceramium zacae Setchell & Gardner 
Dawson, 1954, 1957, 1959; Dawson, Neu- 
shul & Wildman, 1960a 
Southern Calif, to Rocas Alijos; Punta Abre- 
ojos, Baja Calif.; Bahia Agua Verde, Gulf 
of Calif. 
Centroceras helium Setchell & Gardner 
Dawson, 1954 
Guaymas, Sonora 
