264 FORAMINIFERA 



Genus ELLIPSOLINGULINA A. Silvestri, 1907 



Plate 38, figure 6 



Genoholotype, Lingulina impressa Terquem 



Ellipsolingulina A. Silvestri, Riv. Ital. Pal., vol. 13, fasc. 2, 1907, p. 69. 

 Lingulina (part) of authors (not d'Orbigny). 



Test elongate, somewhat compressed, with all the chambers 

 in a rectilinear series ; wall calcareous, perforate ; aperture sub- 

 terminal, narrow, semielliptical, sometimes with an internal 

 tube. 



Tertiary. 



Genus ELLIPSOGLANDULINA A. Silvestri, 1900 



Plate 38, figure 7 



Genoholotype, Ellipsoglandulina laevigata A. Silvestri 



Ellipsoglandulina A. Silvestri, Atti Rend. Accad. Sci. Let. Art. Zelanti 

 Stud. Acireale, vol. 10, 1899-1900 (1900), p. 4. 



Test with the chambers in a rectilinear series becoming 

 involute; wall calcareous, perforate; aperture narrow, sub- 

 terminal, semielliptical. 



Cretaceous and Tertiary. 



Genus GONATOSPHAERA Guppy, 1904 

 Plate 38, figure 8 

 Genoholotype, Gonatosphaera prolata Guppy 

 Gonatosphaera Guppy, Geol. Mag., sec. 5, vol. 1, 1904, p. 241, 

 Test similar to Ellipsoglandulina but compressed ; aperture 

 elliptical. 

 Tertiary. 



Genus ELLIPSOIDINA Seguenza, 1859 

 Plate 38, figure 9 

 Genotype, by designation, Ellipsoidina ellipsoides Seguenza 

 Ellipsoidina Seguenza, Eco Peloritans, ser. 2, vol. 5, 1859, fasc. 9 (10). 



Test with the chambers in a rectilinear series, but completely 

 involute, a hollow tubular structure between the sutures and 

 successive chambers; aperture semicircular, narrow, sub- 

 terminal. 



Cretaceous and Tertiary. 



