BRYOZOA OF THE PHILIPPINE REGION 



179 



Genotype. — Omoisia (Vincularia) maorica Stoliczka, 1864. Terti- 

 ary — Recent. 



This genus is perhaps identical with Dictuonia. 



Erinella Canu and Bassler, 1927. (Erina Canu, 1908.) There are 

 no interzooecial organs. 



Fig. 53. — Genus Membraniccllaria Levinsen, 1909 



A-J. M evibranicellaria dubia Busk, 1884. A. Zoarium, natural size. B. 

 Zooecia with ovicell. The elongated hexagonal zooecia are partly visible through 

 the frontal surface, which is divided into hexagonal, rhombic areas, X17. 

 C. From 1 he basal aspect after removal of the basal surface the cavity of the elon- 

 gated zooecia is visible and the hexagonal rhombic areas of the frontal surface 

 are seen at the same time. On the distal portion of each zooecium an ovicell 

 (ov) with its oblique, basal surface is seen, X17. D. Zooecia with endotoichal 

 ovicell The covering membrane is removed, X17. E. Uniporous septula, 

 X75. F. Group of zooecia. The separating walls of the elongated zooecia are 

 visible through the frontal surface, divided into broad areas, X17. (A-F. 

 After Levinsen, 1909.) G. Zooecia with avicularia, X6. H. Diagrammatic 

 transverse section with a septula situated in the distal wall near the base, X12. 

 I. Operculum with membraniporidan character. It has not any direct connec- 

 tion with the calcareous wall, X85. (G-I. After Waters, 1889.) J. Avicula- 

 rium. (After Busk, 1884.) 



Genotype. — Erinella (Erina) patagonica Canu, 1908. Helvetian. 

 The ovicell of this species was not well understood by Canu from 

 the single mediocre specimen studied. 



