Plate V 
Triplophyllum minnewankensis n. sp. 
Figure 1 . View of calyx of type specimen, slightly enlarged. Section 3 a, locality 3. (Page 25.) 
Figure 2. Lateral view of probably the same species. Section 3 a, locality 3. (Page 25.) 
Lithostrotion pennsylvanicum n. sp. 
Figures 3, 4. View of calices of several individuals and a longitudinal section through others. 
(Page 27.) 
Figure 5. Longitudinal section through corallite, X 2. This section, drawn from several 
specimens, shows the anter vesicular zone (dissepiments), and the central, sharp, narrow columella 
terminating the cone-shaped tabulae. (Page 27.) 
Aulopora curoa n. sp. 
Figure 6 . View of a broken colony. Section 1 , locality 24. (Page 29.) 
Figure 7. Lateral view to show shape of corallites and method of branching. Section 1, 
locality 24. (Page 29.) 
Figure 8. Longitudinal section to show the partial separation of the young corallite from the 
parent by a thickening of the walls. Section 1, locality 24. (Page 29.) 
