PLATE 8 



Fig. 1 Caberea elUsii, dorsal view, showing the large vibraeular chambers and 

 dentate vibraeula. 



Fig. 2 The same, front view, details of zooecia. 



Fig. 3 Dendrobeania murrayana, front view of branch. The much larger 

 lateral avicularia occasionally present are wanting. 



Fig. 4 Bugida fiabellata, front view, showing details, and two views of avicu- 

 larium. 



Fig. 5 Cribrilina punctata, young and infertile zooecia. 



Fig. 6 The same, fertile zooecia. 



Fig. 7 Cribrilina annulata, characteristic portion of zoarium. 



Fig. 8 Microporella ciliata, var. stellata, heavy secondary calcification. 



Fig. 9 The same, younger zooecia. 



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