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Ralfsia pacifica Hollenberg

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drawing of Ralfsia pacifica
radial section and surface view
Synonyms:
Ralfsia occidentalis Hollenberg
Illustrations:
Abbott and Hollenberg 1976, p. 170, fig. 135 (x-section, plurilocular organs); Scagel 1967, p. 83, fig. 27a (habit), fig. 27b (x-section, unilocular organs); Smith 1944, pl. 12, fig. 4 (x-section, base of plant), fig. 5 (x-section, plurilocular organs), fig. 6 (x-section, unilocular organs); Wynne 1969a, pl. 13, figs. e–g (photo: x-section, vegetative anatomy); Hollenberg 1969, p. 294, figs. 17, 18 (not labeled), (x-section, vegetative base and plurilocular organs) Display references
Pacific Coast Distribution:
Alaska (Unalaska, Aleutian Is.: Setchell and Gardner 1925, p. 497, as R. verrucosa; Prince Wm. Sound: Johansen 1971b, p. 66); Queen Charlotte Is., British Columbia (Scagel 1957, p. 73) to Cape Arago, Ore. (Doty 1947, p. 73); Shell Beach, Sonoma Co., Calif. (Kjeldsen 1995, p. 29) to Monterey Peninsula, Calif. (Smith 1944, p. 96); San Luis Obispo Co., Calif. (Cayucos; Shell Beach: Sparling 1977, p. 32); Channel Is., Calif. (San Nicolas: Caplan and Boolootian 1967, p. 209); Corona del Mar, Orange Co., Calif. (Hollenberg 1969, p. 296); Gulf of California (Bahía Tepoca: Dawson 1944a, pp. 222, 223; to Mazatlán, Sinalóa, México: Hollenberg 1969, p. 296); Isla Socorro, Revillagigedo Arch., México (Hollenberg in Taylor 1945, p. 81) Display references
Taxonomy:
Tanaka and Chihara 1980a; Tanaka and Chihara 1980b; Hollenberg 1969, p. 296 Display references
Life History:
plurilocular and unilocular organs found on separate crusts. One isolate from central Calif., was started from zooids from plurilocular organs. They grew into crusts, but were not followed beyond that stage (Wynne 1972b, pp. 139, 140) Display references
Biology/Ecology:
Dethier et al. 1991; Dethier 1987, p. 1840; Thom 1980a, p. 9; Devinny 1978, p. 358; Emerson and Zedler 1978, p. 317; Caplan and Boolootian 1967, p. 209; Stephenson and Stephenson 1961a, p. 14 Display references

 
J F M A M J J A S O N D
BRITISH
COLUMBIA
Pl xxxxxxxxxxxx Common, on rocks and shells in the mid and low intertidal. Scagel 1957, p. 73. Scagel 1973, p. 135. Garbary et al. 1983, p. 322. Dethier 1987, p. 1840. Display references
U    xxxxxx        
S xxxxxxxxxxxx
COLUMBIA
RIVER
Pl x      x  xxx       Common, on large boulders and well rounded rocks in the upper intertidal. Doty 1947, p. 33. Sanborn and Doty 1947, p. 27 (as R. verrucosa). Markham and Celestino 1977, p. 259. Display references
U                        
S      x  xx    x    
CAPE
ARAGO
Pl                        
U                        
S                        
CAPE
MENDOCINO
Pl                        
U                        
S                        
POINT
ARENA
Pl                         Common, on the rocks of the upper and mid intertidal in exposed habitats. Johansen 1966a, p. 95. Kjeldsen 1995, p. 29. Display references
U                        
S  x    x  x    xxx
SAN
FRANCISCO
Pl                         Common, on rocks in the upper intertidal on open coast and in San Francisco Bay. Smith 1944, p. 95. Silva 1979, p. 335. Display references
U            x          
S                        

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Page dated: Mon Feb 13 21:24:26 2006
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