EXPLANATION OF PLATES 



Plate 1 



Figures enlarged 37 times 



Figure 1. Cristellaria wadei W. Berry. 



2. Cristellaria orbicularis, var. minuta W. Berry. 



3. Cristellaria midwayensis Plummer, 



4. Polymorphina ampla Karrer. 



5. Reophax cylindricus, var. ripleyensis W. Berry. 



6. Cornuspira involvens Reuss. 



7. Vaginulina umdei Kelley. 



8. Nodosaria afflnis d'Orbigny. 



9. Nodosaria, species. 



10. Frondicularia angustissima Reuss. 



11. Polymorphina gutta d'Orbigny. 



12. Polymorphina lactea, (Walker and .Jacobs). 



13. Nodosaria proxima Silvestri. 



14. Bolivina plaita Carsey. 



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