PLATE 7 



Fig. 1 Gemdluria loricata, portion of zoarium showing arrangement of zooecia 

 and mode of branching. 



Fig. 2 Tricellaria peachii, a single internode. 



Fig. 3 Tricellaria ternata, habit sketch and front, back, and side views of 

 zooecia. 



Fig. 4 Scrupocellaria scabra, habit sketch and front, back, and side views of 



zooecia; the long vibracula denuded. 



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