NO. 1 OSBURN: eastern pacific BRYOZOA — CHEILOSTOMATA 185 



Robertson described the ovicell as "globose, or medium wide, punc- 

 tured with a few large pores," but Hincks failed to find them, O'Dono- 

 ghue did not mention them, and in the numerous specimens at my dis- 

 posal there are none. Frankly, I do not know how to interpret Dr. 

 Robertson's illustration (pi. 15, fig. 31 ) ; it shows a narrow costal border 

 to the aperture and omits the large basal pores (pelmata) of the costae, 

 and shows ovicells similar to those of Reginella, but also shows the larger 

 avicularium. As Miss Robertson did not mention the very common 

 Reginella mucronata (Canu and Bassler), it is possible that she confused 

 it with Lyrula hippocrepis and combined them in her illustration. 



Various British Columbia localities, Hincks and O'Donoghue ; Yaku- 

 tat, Alaska, and San Pedro and Coronados Islands, southern California, 

 Robertson. 



In the Hancock expeditions this species was recovered at 38 different 

 stations ranging from the coast of Oregon to the Gulf of California. It 

 is very abundant about the Channel Island region off southern California. 

 The known range is from Yakutat, southern Alaska (Robertson), to 

 about the 26th N parallel of latitude ; the bathymetric range is from shal- 

 low water to 79 fms. 



Genus PUELLINA Jullien, 1886 



Jullien erected this genus to include Cribrilina gattyae Busk, the only 

 species known to him, which therefore becomes the genotype. Later other 

 species were added by various authors. Most of these, however, appear 

 to fall more properly in the genus Colletosia Jullien, 1886, which had 

 been neglected until resurrected by Harmer (1926:474). Colletosia, of 

 which Lepralia endlicheri Reuss is the genotype, has quite a different 

 frontal shield. 



In Puellina the costal area does not occupy all of the frontal, but has 

 a comparatively broad gymnocyst border, especially at the proximal end ; 

 there is a small setose avicularium ("vibracellaire," Jullien) at each side 

 of the aperture, and no interzooecial avicularia. The frontal usually bears 

 a distinct rounded umbo near the center of the pericystal area, and oral 

 spines are present. 



