BRYOZOA OF THE PHILIPPINE REGION 



513 



Family LEKYTHOPORIDAE Levinsen, 1909 



The zooecia are much calcified; the walls are thickened. The 

 peristomie is long and tubular; the peristome, more or less salient, 

 bears 1-5 avicularia. The aperture is buried at the bottom of the 

 peristomie; it is closed by a highly chitinized operculum. The ovicell, 



W '<S5 Cf.O 



Fig. 211.— Genus Turritigera Busk, 1884 



A-H. Turritigera stellata Busk, 1884. A. A colony, X 3. B. Anterior surface, 

 X25. Around the aperture there are avicularia on c}dindrical processes. The 

 zooecial surface has elongate pores. 18 tentacles. C. Avicularium from the 

 surface of the zooecium, X85. D. Sagittal section showing the proximal ovicell 

 opening in the peristomie. E. Sagittal section, X17. (After Levinsen 1909). 

 F. Operculum, X85. It is thin. The muscular attachment is some distance 

 from the border. G. Mandible of the peristomial avicularium, X85 and X250. 

 H. Decalcified showing connecting tubes from zooecium to zooecium. (A-D, 

 F-H. After Waters, 1888 and 1909.) 



more or less distinct, is placed on the proximal portion of the peristo- 

 mie into which it opens. 



This family is characterized by the abnormal position of the 

 peristomial ovicell. This is placed on the proximal side of the aper- 

 tura whereas in all the other Cheilostome ovicells it is placed in the 

 distal portion of the aperture. The larva is unknown. 



The known genera are Lelcythopora MacGillivray, 1882; Poecilopora 

 MacGillivray, 1886; Turritigera Busk, 1884; Orthoporidra, Catadysis, 

 and Adisecos Canu and Bassler, 1927. 



