Benthic Algae— DAWSON 
395 
Hydro clathms clathratus (Rory) Howe 
Coe, 1932; Dawson, 1954; Taylor, 1945; 
Dawson, 1959 
La Jolla, Calif, to Scammon Lagoon, Baja 
Calif.; southern Gulf of Calif.; Guay as, 
Ecuador 
Rosenvingea intricata (J. Agardh) Rprgesen 
Dawson, 1954; Taylor, 1945; Dawson, 1959 
Bahia Tepoca, Sonora, to Acapulco, Guerrero; 
Revillagigedo 1 Arch.; Guay as, Ecuador 
Rosenvingea orientalis (J. Agardh) Bprgesen 
Dawson, 1960» 
Bahia Potrero Grande, Costa Rica 
fam. CHNOOSPORACEAE 
Chnoospora implexa Hering, in J. Agardh 
Dawson, 1957, 1951b, 1959, 1959b 
Southern Gulf of Calif.; Golfo de Nicoya, 
Costa Rica; Clipperton I. 
Chnoospora minima (Hering) Papenfuss 
Papenfuss, 1956; Dawson, 1954, 1954c (both 
as C. paciftca) 
La Paz, Gulf of Calif., to San Agustin, Oaxaca; 
Isla San Benedict©, Revillagigedo Arch. 
Chnoospora pannosa J. Agardh 
Dawson, 1954 
Isla Guadalupe, Baja Calif. 
FAM. DICTYOSIPHONACEAE 
Coilodesme bulligera Stroemfelt 
Okamura, 1933; Scagel, 1957 
Aleutian Islands to Coos Bay, Oreg. 
Coilodesme calif ornica (Ruprecht) Kjellman 
Scagel, 1957; Dawson, Neushul, Wildman, 
I960, I960* 
Queen Charlotte Str., British Columbia, to 
central Baja Calif. 
Coilodesme corrugata Setchell & Gardner 
Setchell & Gardner, 1925 
Santa Catalina L, Calif. 
Coilodesme cystoseirae (Ruprecht) Setchell & 
Gardner 
Setchell & Gardner, 1925 
Kukak Bay; Yakutat Bay, Alaska 
Coilodesme polygnampta Setchell & Gardner 
Setchell & Gardner, 1925 
Amaknak L; Unalaska, Alaska 
Coilodesme rigida Setchell & Gardner 
Setchell & Gardner, 1925; Dawson, 1959c; 
Dawson, Neushul, Wildman, I960, 1960^ 
Redondo, Calif., to Bahia Tortuga, Baja Calif. 
Coilodesme sitchensis Setchell & Gardner 
Setchell & Gardner, 1925 
Sitka, Alaska 
Dictyosiphon foeniculaceus (Hudson) Greville 
Scagel, 1957 
Bering Sea to Puget Sound, Wash. 
Dictyosiphon hippuroides (Lyngbye) Kiitzing 
Setchell & Gardner, 1925 
Bering Sea to Unalaska, Alaska 
Dictyosiphon hispidus Kjellman 
Setchell & Gardner, 1925 
Orca, Alaska 
Dictyosiphon sinicola Gardner 
Scagel, 1957 
Southern British Columbia to northern Wash. 
Dictyosiphon tenuis Setchell & Gardner 
Setchell & Gardner, 1925 
Golofin Bay, Alaska 
ORDER L AMIN ARI ALES 
fam. CHORDACEAE 
Chorda plum ( Linnaeus ) Lamouroux 
Scagel, 1957 
Bering Sea to Puget Sound, Wash. ? 
