Plate 6. 



Fig. 1. Ammolagaia davata, microspheric form attached to Cyclammrna. X ' 



2. Ammolngena davata, megalospheric form with secondary cliamber. >; 



3. Amrnolageno davata, megalospheric form attached to Ammodiscus. X 



4. Ammolageiia davata, microsplieric form attached to Clavulina. X 30. 



5. Aschcmonella catenata. X 25. 



6. Reophax scor-piurus . X 30. 



495 



