30 SWEBOTTO^l/Foj a;m'Hi/era /ro7H the Island of Delos. 



Plate IV. 

 Figs. Page. 



1. Pulvimilina vermiailata, d'Urbigny 



2. ,, nitidula, Chaster 



3. ,, globosa, n. sp. 



4. 5. ,, simplex, n. s{). 



6. Rotalia beccarii, I.inne, sp. var. 



7. Polytretna miiiiaceniii (embryonic stage) 



8. Nonionina depressula, Walker and Jacob, 



sp. X 75 ... 12 



9. ,, stelligera, (MOxhxgny x 50 ... 13 



10. Polystomella striatopunctata, Fichtel and 



Moll, sp. X 75 . 14 



