NO. 3 OSBURN : EASTERN PACIFIC BRYOZOA CYCLOSTOMATA 655 



Hancock Stations: Raza Island, Gulf of California, 28°48'N, 113° 

 W, at 40 fms, numerous colonies in reproduction ; also one colony from 

 James Island, Galapagos, at 54 fms. 



TubuHpora concinna MacGillivray, 1885 

 Plate 67, fig. 5 



TubuHpora concinna MacGillivray, 1885:94. 

 TubuHpora concinna, Harmer, 1915:123. 



The zoarium is entirely encrusting on erect stems and on flat surfaces, 

 the branches narrowly lobate and curved laterally, a small and delicate 

 species. The slender peristomes are very elongate, 0.40 to 0.75 mm, 

 strongly curved and often sinuate, sparsely punctate, about 0.09 mm in 

 diameter and the aperture about 0.07 mm. On flat surfaces the peri- 

 stomes are usually directed somewhat outward from the midline of the 

 lobes, but on small stems they are very irregular in arrangement; for 

 the most part they are distinct, but on the broader portion of the lobe 

 they are frequently in series of 2 to 4 and connate to the tips. 



The ovicells are small, almost as simple as in Crisia, narrow proximally 

 and gradually expanded and sometimes slightly lobed between the peri- 

 stomes, the frontal surface inflated and thickly punctate with very small 

 pores. The ooeciostome is nearly terminal, free or in contact with a 

 peristome, short, the aperture expanded and ovate in form, transverse 

 and about 0.12 mm wide by 0.07 mm long. 



Hitherto recorded only from Australia and the East Indies. Our 

 specimens appear to agree in every detail with the description and with 

 Harmer's beautiful illustration (plate 10, fig. 10), except that the ovi- 

 cells are even simpler and less lobate ; the ooeciostome is an exact counter- 

 part. 



Hancock Stations: 1924-49, off Guadalupe Island, west of Lower 

 California, 28°54'08''N, 118°15'36''W, 25-30 fms, on algae, several 

 colonies. Also on a sunken buoy brought up from 45 fms at Rocky Point 

 (Earl Fox, collector), several colonies; one colony from "off San Pedro," 

 without other data; and 12 colonies on a kelp stem washed up on shore 

 at Palos Verdes (R. C. Osburn, collector), all from southern California. 



TubuHpora egregia new species 

 Plate 67, figs. 6 and 7 



The zoaria are encrusting, surrounding the stems of a coralline alga, 

 in one case spreading across free from one branch to another; usually 

 rough and irregular but one specimen has two flabellate lobes. The most 



