166 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Fig. 45. Family Chlidoniidae Levinsen, 1909 



A-V. Chlidonia cordieri Savigny-Audouin, 1828. A. Ordinary colony, X12. 

 B. Colony in which the branches are spread out on the same plane, X 12, C. An 

 internode (kenozooecium) of a main branch with a zooecium rising from it; X55. 

 The segments indicated by a, b, c, d, correspond with similar segments in the inter- 

 nodes of the trunk and the main branches. D. A zooecium, lateral view, X55. 

 The concavity of the frontal surface is seen greatly thickened in its distal half; 

 in the distal part of this cavity a smaller one is seen corresponding with the small 

 distal pore in Figure F. Farther backwards is a connection between the frontal 

 cavity and the cavity of fine zooecium corresponding to the second pore in Figures 

 F, D, P. E. Separating wall with septula in the stolonate network, X200. 

 F. A zooecium from the frontal surface, X55. G. Two internodes (kenozooecia) 



