BRYOZOA OF THE PHILIPPINE REGION 441 



Genus CORNUTICELLA Canu and Bassler, 1927 



The tuberculate imperforate ovicell is at the end of a mother 

 zooecium of a globulus. Vittae. 

 Genotype. — Cornuticella (Catenicella) cornuta Busk, 1852. Recent. 

 Levinsen, 1909, considered the type as a Vittaticella . 



Genus PTEROCELLA Levinsen, 1909 



The ovicell with a double area belongs to the mother zooecium of a 

 triglobulus. The ovicelligerous apertura is different from that of 

 the ordinary zooecia. The sternal area has 3-7 fenestrae disposed 

 in a curve and a rounded cryptocyst lamina on its inner surface. 

 The aperture, the posterior part of which is trapeziform or arch- 

 shaped, is provided with two strongly developed, freely projecting 

 hinge-teeth. The lateral chambers form a wing-like marginal portion 

 on either side in the whole length of the zooecium. The mother 

 zooecium has a small avicularium on its adzooecial side. 12 tentacles. 



Genotype. — Pterocella (Catenicella) alata W. Thompson, 1858. 

 Recent. 



Genus STRONGYLOPORA Maplestone, 1899 



The perforated ovicell belongs to the mother zooecium of a tri- 

 globulus. The operculum is straight at the proximal edge of both 

 the ordinary zooecia and the ovicelligerous zooecia, although the 

 notch in the calcareous wall has been taken for an oral sinus. The 

 sternal area has a number of fenestrae arranged in a submarginal 

 row. The hinge-teeth are rudimentary or indistinct. Of lateral 

 chambers only the suprascapular and the scapular occur, and these 

 form together a winglike flange on either side of the zooecium. 



Genotype. — Strongylopora (Catenicella) pulchella Maplestone, 1880 

 (first species). 



Range. — Miocene of Australia. Recent. 



O-R. Vittaticella contei Audouin, 1826. Genotype. O. Portion of zoariuin, 

 X10. P. Several zooecia enlarged. Q. Lateral view. R. Operculum. (After 

 Waters, 1912.) S. Operculum of V. buski W. Thompson, 1858. (After Waters, 

 1887.) 



The vittae are sunken perforated grooves in the calcareous walls and along 

 each groove there is a cylindrical tube, and within this, from the pore tubes 

 (the perforations just mentioned) organic cords spread out and reach the upper 

 free surface at definite spots or pores. It thus seems that tin: vittae should be 

 compared with the pore chambers (diatellae) of many Cheilostomata in so far 

 as there is indirect communication from the interior to the water surface through 

 the vittae (Waters, 1913). 



