168 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Genus ALYSIDIUM Busk, 1852 



The gonozooecia are borne by stemlike kenozooecia. The crypto- 

 cyst is entirely calcified. The ovicell is bivalve. 



Genotype. — Alysidium parasiticum Busk, 1852. Recent (Australia). 



Genus CATENARIOPSIS Maplestone, 1899 



The zooecia are pyriform and ventricose. The cryptocyst is 

 partially calcified. Ovicell? 



Genotype. — Catenariopsis morningtonensis Maplestone, 1899. Mio- 

 cene. 



This genus appears to us to be a synonym of Alysidium. 



Genus CATENICULA O'Donoghue, 1924 



The ovicell of the gonoecium is multi valve. 



Genotype. — Catenicula corbulifera O'Donoghue, 1924. Recent 

 (South Africa). 



Division 4. PSEUDOSTEGA Levinsen, 1909 



Family CELLARIIDAE Hincks, 1880 



See Canu and Bassler, 1920 and 1923 for description and illustra- 

 tion of this family and its genera. 



Genus CELLARIA Ellis and Solander, 1786 



CELLARIA DIVARICATA MacGillivray, 1895 



Plate 20, fig. 8 



1895. Cellaria divaricata MacGillivray, Monograph Tertiary Polyzoa'ofjVic- 

 toria, Transactions Royal Society of Victoria, vol. 4/'p. 30, pi. 3, fig. 25. 



We have found only two dead segments but the} 7 are quite similar 

 to the figures of MacGillivray. We figure some transverse sections 

 through the zoarium at different heights. 



Occurrence.— D. 4807. Cape Tsiuka, Sea of Japan; 41°36'12"N.; 

 140° 36' E. 



Geologic distribution. — Miocene of Australia (MacGillivray). 



Plesiotypes— Cat. No. 7970, U.S.N.M. 



CELLARIA GRACILIS Busk. 1852 



Plate 20, fig. 7 



1926. Cellaria punctata Harmer, Polyzoa "Siboga" Expedition p. 337, pi. 21, 

 figs. 14-16, text fig. 13a (Bibliography, geographic distribution). 



1895. Cellaria gracilis MacGillivray, Monograph Tertiary Polyzoa Victoria, 

 Transactions Royal Society Victoria, vol. 4, p. 30, pi. 3, fig. 26 (Miocene 

 of Australia). 



History. — Harmer changed the name of Cellaria gracilis Busk, 1852, 

 which had predominated up to 1913, to Cellaria punctata Busk, 1852. 



