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Plate IT 
Sfreptslasma patellum n. sp. 
Figure 1. Broken coral showing the plate-like protrusion into the bottom of the cup. (Page 13.) 
Streptelasma prolongatum n. sp. 
( See also Plate I, figures 3, 4, 5) 
Figure 2. Section showing the shape of the cup. (Page 11.) 
Haly sites delicatulus n. sp. 
Figure 3. A piece of a colony showing the narrow, oblong outline of the corallites. (Page 14.) 
Figure 4. Longitudinal section exhibiting the absence of the intercorallite tubuli and the trans- 
verse tabuke. X2. (Page 14.) 
Figure 5. Section of the top of a more crowded portion showing the corallites squeezed into a 
more rectangular or rounded outline. X 2. (Page 14.) 
Halysites cylindricus n. sp. 
Figure 6. Cross-section showing the outline of the small, round corallites and the looseness of 
their contact. X 2. (Page 15.) 
Figure 7. Longitudinal section showing the relatively short tabulse. X 2. (Page 15.) 
Diphyphyllum ? halysitoides n. sp. 
Figure 8. View of the ends of the corallites showing circular and oval tubes and the Halysites- 
like form of arrangement. (Page 18.) 
Figure 9. Longitudinal view of a natural section showing the bifur cak'd habit of growth. (Page 18.) 
Diphyphyllum t primum n. sp. 
Figure 10. A small piece of a colony showing the arrangement and shape of the corallites. (Page 18.) 
