Dimensions.—Longer axis of the ellipsoid 0.18 to 0.22, shorter axis 0.1 to 0.12; pores 0.004 to 0.008, bars 0.001.
Habitat.—Indian Ocean, near the Cocos Islands, surface, Rabbe.
7. Cenellipsis maxima, n. sp.
Proportion of the longer axis to the shorter = 3 : 2. Network of the thin wall very irregular, with polygonal meshes of very different size and form, twice to eight times as broad as the bars; fifty to sixty on the half equator. Surface smooth.
Dimensions.—Longer axis of the ellipsoid 0.36, shorter axis 0.25; pores 0.004 to 0.015, bars 0.002.
Habitat.—Equatorial Atlantic, Station 347, surface.
8. Cenellipsis ovulum, n. sp.
Proportion of the longer axis to the shorter = 3 : 2. Network of the thin wall very irregular, with roundish or longish pores of very different size and form. Pores flat, with even margins, thirty to forty on the half equator, twice to six times as broad as the bars. Surface smooth. (This species being observed alive, showed a transparent central capsule of ellipsoidal form, two-thirds as large as the shell.)
Dimensions.—Longer axis of the ellipsoid 0.3, shorter axis 0.2; pores 0.04 to 0.012, bars 0.002.
Habitat.—Indian Ocean, Ceylon, Haeckel; Pacific, central area, Station 266, surface.