PLATE XX. 



Fig. 

 1. Heteropora pustuhsa, p. 122. 



1. Mesenteripora meandrwa, p. 109. 



3. Patinella proligera, p. 114. 



4. Discoporella Griynonensis, p. 116. 



5, 8. Alecto repens, p. 11 '3. 



6, 7. dilatanx, p. 112. 



9. Tubulipora fiabellarix, p. 111. 

 10. Diastopora simplex, p. 113. 



