Habitat.—South Atlantic, Station 332, surface.
2. Zonaspis cingulata, n. sp. (Pl. [134], figs. 3, 4).
Radial spines cylindrical in the inner half, with thickened pyramidal bases (fig. 3), conical in the outer half; both halves of equal length. The four meshes of each equatorial plate egg-shaped, four to six times as broad as the bars. By-spines zigzag, half as long as the radius.
Dimensions.—Diameter of the shell 0.15, of the parmal meshes 0.015.
Habitat.—Tropical Pacific (east coast off Philippines), Station 275, surface.
3. Zonaspis æquatorialis, n. sp. (Pl. [135], fig. 5).
Radial spines stout, cylindrical in the shorter inner half, conical in the longer outer half. The four meshes of each equatorial plate circular, only twice as broad as the bars. By-spines zigzag, nearly as long as the radius.
Dimensions.—Diameter of the shell 0.11, of the parmal meshes 0.008.
Habitat.—Equatorial Atlantic, Station 347, surface.