CHILOSTOMELLA Reuss, 1849

 

 

Tipe species: Chilostomella ovoidea Reuss,1850(*2573) p. 380: SD Cushman, 1914(*706), p. 2.

Chilostomella Reuss. in Cžjžek. 1849(*867), p. 50.Test ovoid, circular in section, planispiral and involute. two strongly embracing chambers per whorl; wall calcareous, optically gran­ular, finely perforate, surface smooth; aperture a narrow interiomarginal and equatorial slit and may have a slightly elevated margin. U. Cretaceous to Holocene: cosmopolitan.