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BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Fig. 80.— Genus Bugulopsis Verrill, 1880 

 A-G. Bugulopsis peachi Busk, 1851. A. Zoarium, two-thirds natural size. 

 B, C. Frontal side of two branches, showing their bifurcation. D. Dorsal side 

 of branch. (A-D. After Hincks, 1880.) E. Zooecium with ovicell. (After 

 Smitt, 1867.) F. Sketch, X12, showing articulation. (After Waters, 1913.) 

 G. Diagram of bifurcation. The radicular dietella is placed on the proximal por- 

 tion of the exterior zooecium but below the chitinous tube. (After Harmer, 1923.) 



Fig. 81. — Genus Rhabdozoum Hincks, 1882 

 A-D. Rhabdozoum wilsoni Hincks, 1SS2. A. Shoot of the natural size. B. 

 Summit of one of the chitinous rods, showing the annulation, the cuplike expan- 

 sion and the basal portion of the upper celliferous stems. C. Portion of a cel- 

 liferous stem, magnified, showing the arrangement of the zooecia, avicularia, and 

 spines. D. Zooecia with ovicel Is. I After Hincks, 1882.) 



