BRYOZOA OF THE PHILIPPINE REGION 



397 



The zoarium is articulated; the segments are formed of two zooecia 

 back to back; each segment is a right angle to those above and 

 below. 



Genotype. — Diploecium simplex Kirkpatrick, 1888. Recent. 



In some parts of the branches the internodes (segments) are sup- 

 pressed; but the general arrangement of the zooecia is as described 

 above (Kirkpatrick). 



Genus HIPPOPODINELLA Barroso, 1924 



The ovicell is endozooecial. The frontal is a tremocyst. The 

 apertura bears two salient cardelles. The anter is longer and nar- 

 rower than the poster. The operculum is contracted laterally and 

 bears two median muscular attachments. The lateral walls of the 

 frontal are perforated by parietal dietellae. 



Genotype. — Hippopodinella (Lepralia) adpressa Busk, 1854 



Range. — Pliocene. Recent. 



Family PARMULARIIDAE 

 Maplestone, 1912 



Stoloniferous cheilostomata 

 with hyperstomial ovicells 

 closed by the operculum. 



Genus PARMULARIA 

 Maplestone, 1910 



(?)1852. Lanceopora D'Orbigny, 

 1852, Paleontologie 

 francaise, Terrains 

 cretacds, vol. 5, p. 1S6. 

 1910. Parmularia Maplestone, 

 Transactions Royal Soci- 

 ety Victoria, vol. 23, p. 42. 

 1924. Parmularia Livingstone, a 

 revision of the genus 

 Parmularia, Records of 

 the Australian Museum, 

 vol. 14, p. 189. 



The ovicell is hyperstomial. The frontal is a tremocyst. The 

 aperture is schizoporidan. The zooecial walls are curved and par- 

 allel, two by two. The growth is as usual in the two axial rows of 

 each segment and laterally oblique in the rest of the colony. The 

 zoarium is stoloniferous; the segments are bilamellar and irregularly 

 lobed. 



Genotype. — Parmularia (Eschara) obliqua MacGillivray, 1868. 



Range. — Miocene. Recent. 



Historical. — The segments are generally lobed but some are lanceo- 

 late and symmetrical. It is probably such lanceolate specimens that 



Fig. 153. — Genus Diploecium Kirkpatrick, 



1888 



A-C. Diploecium simplex Kirkpatrick, 1888. 

 A. Colony, natural size. B. Two segments 

 arranged at right angles. C. View of an 

 ovicellcd zooecium. (A-C. After Kirk- 

 patrick, 1888.) 



