BRYOZOA OF THE PHILIPPINE REGION 475 



Genus MAMILLOPORA Smitt, 1873 



1873. MamiUopora Smitt, Floridan Bryozoa, Kongl. Svenska Vetenskaps, 

 Akademiens Handlingar, vol. 11, p. 33. 



The zoarium is cupuliform or conical and floating. The two faces 

 are covered by mammilosities. The superior face contains only the 

 aperture and its wide peristome. The aperture is subelliptical with 

 two submedian cardelles. The peristome bears an elliptical or oval 

 avicularium. The ovicelled zooecia are much larger. 



Genotype. — MamiUopora cupula Smitt, 1873. (See pi. 94, figs. A-F.) 



Range. — Eocene — Recent. 



The other known species of the genus are as follows: 



MamiUopora (Cupularia) bidenta Reuss, 1869 (according to Waters), 

 Eocene (Priabonian). 



MamiUopora tuberosa Canu and Bassler, 1919, Miocene (Bowden). 



MamiUopora cavernulosa, new name ( = M. tuberosa Canu and 

 Bassler, part), Miocene (Costa Rica). 



Genus FEDORA Jullien, 1882 



Plate 93, figs. K-M 



1882. Fedora Jullien, Dragages du Travailleur, Bulletin Societe Zoologique 

 France, vol. 7, p. 17. 



Zooecia subhexagonal with circular orifice, thick but not salient, 

 indented on its posterior fourth where it is thin, finally placed 

 nearer the center of the zooecium, where it occupies a third of the 

 diameter; ovicell non-salient indicated exteriorily by a smooth band 

 forming an obtuse angle, with the summit turned toward the orifice; 

 the summit of the angle is crowned by a calcareous lamella which 

 bears behind a broad opening. Avicularia not constant, situated on 

 the sides and outside of the orifice. (Translation after Jullien.) 



Genotype. — Fedora edwardsi Jullien, 1882. 



Range. — Recent. 



In 1923 we gave too much latitude to this genus. It should be 

 maintained with the exact limits of its author because of the special 

 nature of its ovicell and of the particular structure of its operculum. 



Genus ANOTEROPORA Canu and Bassler, 1927 



Plate 94, figs. G-N 



The zoarium is cupuliform. The inferior base of each zooecium is 

 porous. The superior base is convex, perforated proximally by the 

 apertura and decorated distally by a triangular avicularium arranged 

 transversely. The aperture is elliptical with two submedian cardelles. 

 The ovicelled zooecia are much larger and their aperture is transverse; 

 the ovicell is very large, occupying the place of a zooecium and 

 closed by the operculum. 



