Cortical shell thin walled, rough, seven times as broad as the medullary shell, with irregular roundish pores, three to six times as broad as the bars.
Dimensions.—Diameter of the outer shell 0.2, inner 0.03, outer pores 0.012 to 0.025, bars 0.004.
Habitat.—South Atlantic, Station 330, surface.
17. Carposphæra maxima, n. sp.
Cortical shell thin walled, smooth, five times as broad as the medullary shell, with irregular roundish pores, of about the same breadth as the bars.
Dimensions.—Diameter of the outer shell 0.4, inner 0.08, pores and bars 0.004 to 0.008.
Habitat.—Central Pacific, Station 272, depth 2600 fathoms.
18. Carposphæra nodosa, n. sp. (Pl. [28], figs. 2, 2a).
Anthomma nodosum, Haeckel, 1879, Atlas, loc. cit.
Cortical shell thick walled, covered with forty to fifty scattered pyramidal nodules, two and a half times as broad as the medullary shell, connected with it by very numerous thin radial beams. Outer and inner pores irregular roundish or polygonal, two to three times as broad as the bars. (This species in consequence of the cortical nodules may represent a peculiar genus, analogous to Conosphæra, called Anthomma.)