380 
PACIFIC SCIENCE, Vol. XV, July 1961 
Derhesia pacifica Jao 
Scagel, 1957 
Turn I., Wash. 
Derbesia prolifica Taylor 
Taylor, 1945 
Galapagos Arch. 
fam. BOODLEACEAE 
Struvea anastomosans ( Harvey ) Piccone 
Dawson, 1954, 1951b 
Acapulco, Guerrero; Costa Rica 
Boodlea composita (Harvey & Hooker, f.) 
Brand 
Taylor, 1945; Dawson, 1954 
Isla Maria Magdalena, Nayarit; Guayas, Ecua- 
dor 
Boodlea siamensis Reinbold 
Dawson, \951b 
Golfo Dulce, Costa Rica 
order SIPHONALES 
fam. DERBESIACEAE 
H alley stis ovalis (Lyngbye) Areschoug 
Scagel, 1957; Dawson, Neushul, Wildman, 
I960, I960* (Note: this is generally rec- 
ognized as the gametophyte phase of Der- 
besia marina ) 
Silver Bay, Alaska, to Punta Eugenio, Baja 
Calif. 
Derbesia attenuata Dawson 
Dawson, 1959 b, 1960a 
Clipperton L; Isla Brincanco, Panama 
Derbesia hollenbergii Taylor 
Taylor, 1945; Dawson, 1959 
Isla Carmen, Gulf of Calif.; Galapagos Arch. 
Derbesia lamourouxii (J. Agardh) Solier 
Dawson, 1954 
Near Tijuana; Cabo Colnett, Baja Calif. 
Derbesia longifructa Taylor 
Taylor, 1945 
Guayas, Ecuador 
Derbesia marina (Lyngbye) Kjellman 
Scagel, 1957 (Note: this is generally recog- 
nized as the sporophyte phase of Halicystis 
ovalis ) 
Sitka, Alaska, to La Jolla, Calif. 
Derbesia tenuissima (De Notaris) Crouan & 
Crouan ? 
Dawson, 1954 
Campo Malarrimo, Bahia Vizcaino, Baja Calif. 
Derbesia vaucheriaeformis (Harvey) J. Agardh 
Scagel, 1957 
Yakutat Bay, Alaska, to northern Wash. 
fam. CAULERPACEAE 
Caulerpa cupressoides var. lycopodium near f. 
elegans Weber van Bosse 
Taylor, 1945 
Isla Gorgona, Colombia 
Caulerpa pinnata f. pectinata (Kiitzing) Weber 
van Bosse 
Dawson, 1954 
Isla Angel de la Guarda, Gulf of Calif. 
Caulerpa racemosa var. clavifera f. macrophysa 
(Kiitzing) Weber van Bosse 
Dawson, 1954 
Isla Guadalupe, Baja Calif. 
Caulerpa racemosa var. laetevirens (Montagne) 
Weber van Bosse f. laetevirens 
Dawson, 1954 
Isla Guadalupe, Baja Calif.; Isla Clarion, Re- 
villagigedo Arch. 
Caulerpa racemosa var. laetevirens f. cylindraceae 
(Sonder) Weber van Bosse 
Dawson, 1954 
Isla Guadalupe, Baja Calif.; Clipperton I. 
Caulerpa racemosa var. occidentalis (C. Agardh) 
Bprgesen 
Taylor, 1945; Dawson, 1954 
Isla Clarion, Revillagigedo Arch.; Galapagos 
Arch. 
