NO. 1 OSB URN : EASTERN PACIFIC BRYOZOA CHEILOSTOMATA 169 



i''^ Dendrobeania multiseriata (O'Donoghue), 1925 

 Bugula multiseriata O'Donoghue, 1925:18. 



This species evidently belongs in Dendrobeania, as O'Donoghue states 

 that one zooecia arises from the other on the dorsal side by a quite straight 

 transverse joint. Also the ovicell, in form, mode of attachment and sur- 

 face decoration is typically that of a Dendrobeania. The very broad fronds 

 and the presence of smaller avicularia on the inner zooecia suggest a close 

 relationship to B. murrayana (Johnston). The absence of spines, except 

 a very small one at each distal corner, and the form of the avicularia 

 appear to distinguish it specifically, but it may prove to be only another 

 variety of B. murrayana. Described from "St. Paul Island, Alaska." 



'^"^ Dendrobeania simplex (O'Donoghue), 1923 

 Flustra simplex O'Donoghue, 1923 :24 ; 1926 :48. 



Zoarium erect, dichotomous, the branches consisting of 8 to 10 series 

 of zooecia at their widest part; attached by radicles which arise from 

 near the middle of the dorsal part of the zooecia. 



Zooecia alternate, elongate, rounded distally and truncate at the base ; 

 aperture occupying the major part of the front. Spines absent or limited 

 to small points at the distal corners. No avicularia. 



Ooecia prominent, subglobose, with a slightly upturned lip, the sur- 

 face with radiating striae (condensed from O'Donoghue's two accounts). 



The ovicells in this species are very definitely hyperstomial, while 

 those of the genus Flustra are endozooecial. The form, mode of budding 

 (transversely across and closely attached to the distal end of the zooeci- 

 um), and the nature of the decoration are all similar to the same charac- 

 ters in species of Dendrobeania. It is probably merely a variety of D. 

 lichenoides (Robertson) in which the spines are often much reduced or 

 wanting over much of the colony. 



It was described from north of Gabriola Island and later listed from 

 off Cape Lazo and Bull Passage, British Columbia. It did not appear in 

 the Hancock dredgings. 



Genus BEANIA Johnston, 1840 



Genotype, Beania mirabilis Johnston, 1840. 



In this genus the zooecia are more or less separated and connected by 

 tubular extensions. In some species the connecting tubes are so short that 

 at first view they may appear to be wanting ; in other species the tubular 

 portion may be as long or longer than the body of the zooecium. The 



