NO, 1 DICKINSON: SPONGES OF GULF OF CALIFORNIA 7 



Distribution. — This species is cosmopolitan, having been reported 

 from all parts of the world, notably from southern California. 



Material examined. — 

 Sta. 515-36 San Francisco Island 2-24-36 Shore 



Sta. 584-36 Concepcion Bay 3-14-36 16 m 



Remarks. — There is a considerable variation within the specimens 

 examined, and it is possible to match the variations in spicule size with 

 published variations in species. However, it appears preferable to identify 

 all these specimens with the older cosmopolitan species, which should 

 probably receive many of the Haliclona in synonymy. 



Haliclona palmata (Ellis and Solander) 

 Plate 6, Figs. 11, 12; Plate 7, Fig. 13 



Spongia palmata Ellis and Solander, 1786, p. 189. 

 Haliclona palmata Burton, 1930, p. 511, 



Diagnosis. — Specimens of this sponge are semiglobular, resilient, and 

 drab in alcohol. Gemmules are present in some specimens. Their most 

 characteristic size is 160 by 200 fx. The internal structure is typical Hali- 

 clonid architecture with the suggestion of reticulation and the lack of 

 dermal specialization. The oxeas are 4 by 45 ft with very little variation 

 and no differences in arrangement or size for the various sections of the 

 sponge. 



Holotype. — British Museum. 



Type locality. — European waters. 



Distribution. — Cosmopolitan. 



Material exa?nined. — 

 Sta, 515-36 San Francisco Island 2-24-36 Shore 



Remarks. — The Hancock specimens of Haliclona palmata look, super- 

 ficially, somewhat like H. lunisimilis de Laubenfels from Pacific Grove, 

 California ; but the oxeas are, as noted above, only 4 by 45 /x as compared 

 with 8 to 10 by 110 to 125 ju, in //. lunisimilis. It is possible that the 

 specimens should be classified with those mentioned above as H. cinerea 

 or with H. lunisimilis; but H. palmata is also well established and cos- 

 mopolitan, and the spiculation of our specimens is much closer to it than 

 to that of either of the others. 



Haliclona permolis (Bowerbank) 

 Plate 7, Fig. 14; Plate 8, Fig. 15 



Isodictya permolis Bowerbank, 1866, p. 278, 

 Isodictya ramuscula Bowerbank, 1866, p, 314. 

 Haliclona permolis de Laubenfels, 1936, p. 38. 



