658 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



It is a common species in the northern Atlantic, on the European 

 coast, the American coast as far south as Cape Cod, and in the Arctic 

 area from Spitsbergen west to Icy Cape, Alaska. Robertson recorded it 

 from Puget Sound to southern California, and O'Donoghue from several 

 localities in British Columbia. 



Hancock Collections: dredged only once, Station 1122-40, off San 

 Nicolas Island, southern California, 33°18'N, 119°24'10"W, at 30 

 fms. Also from Point Barrow, Alaska, Arctic Research Laboratory, 

 G. E. MacGinitie, collector. 



Genus BATHYSOEGIA new genus. 



Ovicell depressed between the erect tips of the zooecial tubules, 

 irregularly arcuate in form with the ends of the arc prolonged distally 

 into narrow lobes between the fascicles; ooeciostome at the distal border 

 of the arc, median, small, erect and connate to a tubule only at its base. 

 Zoarium rounded or lobate; the ancestrula and first few single tubules 

 tubulipora-like ; then the tubules become more or less erect in small 

 groups, connate to their tips. Peristomes are often wanting except in 

 older stages, when they arise around the aperture of the partially closed 

 end of the tubules. Genotype, Bathysoecia bassleri Osburn, new species. 



In the genotype the erect tubules are so closely connate that there is 

 no exposure of the tubules except at their tips, where they produce a 

 reticulum. In younger zooecia, near the zoarial margin the tubules are 

 thin-walled and wide open ; later the walls become thick at the tips and 

 form an infundibular depression with a rounded aperture; still later 

 around the aperture there rises a thin-walled peristome which projects 

 upward from the bottom of the funnel. 



The ovicell appears to be different from that of any other form among 

 the Tubuliporidae. It is developed directly on the basal lamina before 

 the tubules distal to it are formed. Later the connate tubules rise high 

 around it on all sides of the ovicell, which appears as a depressed and 

 irregularly arcuate area with a flat thin-walled surface. The ooecio- 

 stome is distal, median and connate with a tubule or between two of 

 them, narrow and moderately high. 



The only other species with similar tubules and ooecia that has come 

 to my attention is the "? TubuHpora (Tubularia by error) lobulata" 

 Osburn, 1933 :16, from the Atlantic Coast of North America, which 



