BRYOZOA OF THE PHILIPPINE REGION 227 



Genus BICELLARIELLA Levinsen, 1909 



(Bicellaria Blainville, 1830, preoccupied) 



The ovicells are free and issue from the boundary between two 

 zooecia placed in the same longitudinal row. The zooecia are twinned. 

 Each zooecium consists of three sections separated by constrictions 

 of which the middle one is elongated, cylindrical, while the distal one 

 is obliquely funnel-shaped. Avicularia freely movable. The basal 



Fig. 87. — Genus Maplestonia MacGil- 

 livray, 1884 



A-D. Maplestonia cirrata MacGillivray, 1884. A. Specimen, natural size. 

 B. Portion magnified to show the anterior surface of the zooecia and the mode 

 of branching. C. Small portion of the same to show the posterior surface. 

 D. Ovicellcd zooecium. (After MacGillivray, 1884.) 



edge of the distal wall unequally asymmetrically angular; the radical 

 fibers issue from the basal side of the zooecium (after Levinsen, 1909), 

 12-16 tentacles. 

 Genotype. — Bicellariella (Sertularia) ciliata Linnaeus, 1758. Recent. 



Genus BICELLARINA Levinsen, 1909 



The ovicells are free and issue from the boundary between two 

 zooecia placed in the same longitudinal row. The zooecia are 

 twinned, not divided into three segments separated by constrictions. 

 The basal edge of the distal wall is angular, with small uniporous 



