436 
Botryocladia banco ckii Dawson 
Dawson, 1954 
Bahia Agua Verde, Gulf of Calif. 
Botryocladia neushulii Dawson 
Dawson 1958; Dawson, Neushul & Wildman, 
I960 
Goleta, Calif., to Bahia San Quintln, Baja 
Calif. 
Botryocladia pseudodichotoma (Farlow) Kylin 
var. pseudodichotoma 
Scagel, 1957; Dawson, 1954; Dawson, Neu- 
shul & Wildman, I960, I960 a 
Vancouver I., British Columbia, to Isla Maria 
Magdalena, Nayarit; Isla Socorro, Revilla- 
gigedo Arch.; Galapagos Arch. 
Botryocladia pseudodichotoma var. datilensis 
Dawson 
Dawson, 1954 
Isla Tiburon; near Guaymas, Gulf of Calif. 
Botryocladia tenuissima Taylor 
Taylor, 1945 
Galapagos Arch. 
Botryocladia uvarioides Dawson 
Dawson, 1954, 1959 
Southern Gulf of Calif. 
Halosaccion glandiforme ( Gmelin ) Ruprecht 
Scagel, 1957 
Westernmost Aleutian Islands, Alaska, to 
Monterey Peninsula, Calif. 
Halosaccion ramentaceum (Linnaeus) J. Agardh 
Setchell & Gardner, 1903 
Sannak L to Cook Inlet, Alaska 
Halosaccion tilesii Kjellman 
Setchell & Gardner, 1903 
Kukak Bay to Wrangel, Alaska 
Drouetia coales cens ( Farlow ) ' G. De Toni 
G. De Toni, 1938; Taylor, 1945 (as Herpo- 
phyllon coales cens ) ; Dawson, 1949 
Galapagos Arch. 
PACIFIC SCIENCE, Vol. XV, July 1961 
Drouetia rotata Dawson 
Dawson, 1949; Dawson, Neushul & Wild- 
man, I960 (partly as D. peltata by error ) , 
1960# 
Southern Calif. Channel Islands to Baja Calif. 
Rhodymenia arb ores cens Dawson 
Dawson, 1954; Dawson, Neushul & Wild- 
man, I960, 1960# 
Southern Calif, to Isla Magdalena, Baja Calif. 
Rhodymenia attenuata Dawson 
Smith, 1944; Dawson, Neushul & Wildman, 
I960, 1960# 
Monterey, Calif., to Isla Asuncion, Baja Calif. 
Rhodymenia calif ornica Kylin 
Taylor, 1945; Dawson, 1954, 1949'#, 1951#, 
1959, 1959c; Scagel, 1957; Sparling, 1957; 
Dawson, Neushul & Wildman, I960 
Southern British Columbia to Isla Magdalena, 
Baja Calif.; Isla Carmen, Gulf of Calif.; 
Galapagos Arch. 
Rhodymenia dawsonii Taylor 
Dawson, 1954; Dawson, Neushul & Wild- 
man, 1960# 
Bahia Tortuga, Isla Magdalena, Baja Calif. 
Rhodymenia decumbens Taylor 
Taylor, 1945 
Galapagos Arch. 
Rhodymenia divaricata Dawson 
Taylor, 1945; Dawson, 1954 
Northern Gulf of Calif.; Galapagos Arch. 
Rhodymenia flabellifolia Bory 
Taylor, 1945; Dawson, 1941 
Galapagos Arch. 
Rhodymenia hancockii Dawson 
Dawson, 1954, 1959 
Isla Angel de la Guarda; Bahia Agua Verde, 
Gulf of Calif. 
Rhodymenia lobata Dawson 
Smith, 1954; Dawson, 1954 
Monterey, Calif.; near Isla Isabel, Nayarit 
