378 The American Geologist. December, looi 
Explanation of plate xxxiv. 
Figs. 1-6, Dekayia magna, n. sp p. 32 
Fig. I. Fragment of a zoarium from Vevay, natural size. 
Fig. 2. Fragment from Lawrenceburg, natural size. 
Fig. 3. Surface of Lawrenceburg specimen X18. 
Fig. 4. Longitudinal section of same. 
Fig. 5. Longitudinal section of a Vevay specimen. 
Fig. 6. Tangental section of 2. 
Figs. 7-10, Amplexopora multipinosa n. sp p. 34 
Fig. 7. Fragment of zoarium showing bases of four branches. 
Fig. 8. Fragment from which the sections represented in Figs. 
9 and 10 were cut. 
Fig. 9. Longitudinal section X18. 
Fig. 10. Tangental section near surface X53- Specimens 7-T0 
from Milton, Indiana. 
Explanation of plate xxxv. 
Figs. i-6a, Dekayella cystata n. sp p. 33 
Figs. I and 2. Views of portions of two zoaria, natural size, 
showing peneral shape of zoarium and character of monti- 
cules. 
Fig. 3. Tangental section near surface of 2. 
Fig. 4. Longitudinal section of 2. ' 
Fig. 5. Tangental section of i. 
Figs. 6 and 6a. Longitudinal sections of i, showing cysti- 
phragms. Locality — Vevay, Platystrophia zone. 
Figs. 7-8, Eridotrypa vevayensis n. sp p. 35 
Fig. 7. Longitudinal section showing two mature zones. 
Fig. 8. Tangental section from same individual XSO showing 
thick walls, mesopores and absence of acanthopores. Lo- 
cality. — Vevay (No. 15). 
