BRYOZOA OF THE PHILIPPINE REGION 



63 



tridae for the reception of the genus Biflustra. "The quadrangular 

 shape of the zooecia, as well as their strong usually high and hardly 

 calcified and granular margins, in most cases will make the bifius- 

 tridan type recognizable." He cites three species: Flustra lacroixii 

 Savigny-Audouin, 1826, although under this name he figures A plousina 

 fllum Jullien, 1902, Biflustra denticulata which is of very different 

 structure (Hemiseptella) and Flustra savartii Savigny-Auduoin, 1826. 



These three authors have then principally considered as types of 

 the genus Biflustra, Flustra savartii, in which the colonies are fre- 

 quently bilamellar. In ac- 

 cordance with the rules of 

 nomenclature which require 

 the recognition of old names, 

 we might recognize Biflustra 

 with Flustra savartii as the 

 genotype, but as the pale- 

 ontologists have introduced 

 into this genus a great num- 

 ber of species of very differ- 

 ent structure we created in 

 1917 the genus AcantJiodesia 

 in order to avoid all confu- 

 sion. However, we can main- 

 tain Smitt's name for the 

 family. In the absence of 

 known larvae we can not 

 state if this family is a nat- 

 ural one. 



Conopeum Norman, 1903, 

 AcantJiodesia Canu and 

 Bassler, 1920, Adenifera 

 Canu and Bassler, 1917, 

 Cupuladria Canu and Bass- 

 ler, 1920, Heliodoma Calvet, 1907, Otionella Canu and Bassler, 1917, 

 Trochopora D'Orbigny, 1852, Crepis Jullien, 1882, Discoflustrellaria 

 D'Orbigny, 1851, and Me mbraniporina Levinsen, 1909, were described 

 and illustrated by us under section 1 of Membraniporae (no ovicoll) 

 in our monograph of 1920. Discoflustrellaria is now referred to the 

 Mamilloporidae but all the other genera and in addition Cellarinidra 

 Canu and Bassler, 1927 (Cellarina D'Orbigny, 1851, preoccupied) and 

 Quadricellaria D'Orbigny, 1850, here described and figured are now 

 referred to the Biflustridae Smitt, 1872. Membranipora Blainville, 

 1830, which has the same standing as Me mbraniporina Levinsen, 

 1909, is likewise placed here. 



Fig. 7. — Genus Corynoporella Hincks, 1888 



A, B. Corynoporella tenuis Hincks, 1888. 

 A. Dorsal surface. Fibrils are given off from 

 the dorsal surface of the cell a little below 

 the summit towards one side. B. Lateral 

 view of a zooecium showing the large articu- 

 lated avicularium. (After Hincks, 1888.) 



