RHIZOPODA — FORAMINIFERA. 



8l 



of the Paris basin, the Fahularia discolithes (Fig. 14) of Defrance, 

 and the Alveolina ovotdea of d'Orbigny (Fig. 15) are found, and the 



Fig. 12. — Nummulites Rouaulti (d'Archiac and J. Haime). 







^^^^-^^^^ ^ 



Fig. 13.- Calcarina (Siderolites) calcitrapoides (Lamarck), natural size and magnified. 



Dactylopora cylindracca of Lamarck (Fig. 16) is found in the eocene 

 formation of Valmondois, and in the chalk of Grignon. At first, 



G 



