Plate YI 
Syringopora pennsylvanica n. sp. 
Figure 1. Top view of a colony (the type specimen), showing diameter and spacing. Section 
4, locality 2. (Page 31.) 
Figure 2. Lateral view of two corallites of probably the same species. Section 2, locality 6. 
(Page 31.) 
Figures 3, 4. A longitudinal and a transverse section. Section 4, locality 2. (Page 31.) 
Orbiculoidea arenaria n. sp. 
Figure 5. View of inner surface of pedicle valve of type specimen. Section 1, locality 14. 
(Page 31.) 
Figure 6. Side view of exterior of brachial valve. Section 1, locality 14. (Page 31.) 
Schellwienella lata n. sp. 
Figure 7. View of exterior of brachial valve. Type specimen. Section 2, locality 12. 
(Page 35.) 
Figure 8. Exterior of two pedicle valves (concave) and two brachial valves. Section 2, 
locality 12. (Page 35.) 
