3. Rhodosphæra palliata, n. sp.
Both cortical shells with an unequal number of irregular roundish pores; the outer pores somewhat smaller and much more numerous than the inner pores; the bars between the latter are thicker. Medullary shell about one quarter as broad as the inner cortical shell, with regular circular pores.
Dimensions.—Diameter of the outer shell 0.4, middle 0.36, inner 0.08; outer pores on an average 0.008, middle 0.012, inner 0.004.
Habitat.—Fossil in Barbados.
4. Rhodosphæra pentaphylla, n. sp.
Both cortical shells with unequal number of irregular roundish pores; the inner pores large, three to four times as broad as the bars; to each inner pore corresponds a group of five smaller outer pores, like the five petals of a flower. Medullary shell half as broad as the inner cortical shell, with regular circular pores.
Dimensions.—Diameter of the outer shell 0.25, middle 0.2, inner 0.1; outer pores on an average 0.006, middle 0.012, inner 0.004.
Habitat.—Central Pacific, Station 268, depth 2900 fathoms.
Subfamily Cromyosphærida,[[36]] Haeckel, 1881, Prodromus, pp. 449, 453.
Definition.—Liosphærida with four concentric spherical latticed shells, united by radial beams.