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PACIFIC SCIENCE, Vol. XV, July 1961 
Acrochaetium eastwoodae (Setchell & Gardner) 
Papenfuss 
Dawson, 1954 
Isla Clarion, Revillagigedo Arch. 
Acrochaetium elegans (Drew) Papenfuss 
Papenfuss, 1945 
La Jolla, Calif. 
Acrochaetium erythrophyllum Jao 
Scagel, 1957 
Port Angeles, Wash. 
Acrochaetium gymnogongri (Drew) Papenfuss 
Papenfuss, 1945 
San Francisco, Calif. 
Acrochaetium banco ckii (Dawson) Papenfuss 
Dawson, 1954 
Isla Angel de la Guar da, Gulf of Calif. 
Acrochaetium inf es tans Howe & Hoyt 
Dawson, 1960# 
Puerto Culebra, Costa Rica 
Acrochaetium macounii (Collins) Hamel 
Scagel, 1957 
Vancouver I., British Columbia, to Carmel 
Bay, Calif. 
Acrochaetium magnipcum (Drew) Papenfuss 
Papenfuss, 1945 
La Jolla, Calif. 
Acrochaetium ohscurum (Drew) Papenfuss 
Papenfuss, 1945 
Marin Co. to Carmel, Calif. 
Acrochaetium pacificum Kylin 
Dawson, 1954; Scagel, 1957; Dawson, Neu- 
shul & Wildman, 1960# 
Northern Wash.; Oreg.; Islas San Benito, 
Baja Calif.; vicinity of Guaymas, Sonora 
Acrochaetium penetrate (Drew) Papenfuss 
Taylor, 1945; Dawson, 1954 
La Jolla, Calif.; Bahia San Quint in, Baja 
Calif.; Puerto Parker, Costa Rica 
Acrochaetium plumosum (Drew) G. M. Smith 
Papenfuss, 1945; Dawson, 1954 
Tomales Bay, Calif., to Bahia Asuncion, Baja 
Calif. 
Acrochaetium punctatum Dawson 
Dawson, 1954 
Bahia Bocochibampo, Sonora 
Acrochaetium rhizoideum (Drew) Jao var. 
rhizoideum 
Dawson, 1954; Scagel, 1957 
Wash, to Isla Cedros, Baja Calif. 
Acrochaetium rhizoideum var. patens (Drew) 
G. M. Smith 
Smith, 1944 
Carmel, Calif. 
Acrochaetium scinaiae Dawson 
Dawson, 1954 
Santa Barbara I., Calif.; Gulf of Calif. 
Acrochaetium simplex (Drew) Papenfuss 
Papenfuss, 1945 
Santa Monica, Calif. 
Acrochaetium sinicolum (Dawson) Papenfuss 
Dawson, 1954 
Isla Turner, Gulf of Calif. 
Acrochaetium spiculiphilum Dawson 
Dawson, 1954 
Bahia San Quintin, Baja Calif. 
Acrochaetium suhimmersum (Setchell & Gard- 
ner) Papenfuss 
Scagel, 1957 
Northern Wash, to Carmel, Calif. 
Acrochaetium suhseriatum Bprgesen 
Dawson, 1959 h 
Clipperton I. 
Acrochaetium tenuis simum (Collins) Papenfuss 
Papenfuss, 1945 
San Pedro, Calif. 
