Habitat.—Central Pacific, Station 274, surface.
4. Orophaspis ramosa, n. sp.
Parmal pores of the shell circular, of the same size as the sutural pores and the bars. Radial spines compressed, very long, each with two opposite apophyses, which are more or less irregularly branched (commonly between eight and twelve thin branches on each spine); their distance from the shell smaller than its diameter.
Dimensions.—Diameter of the shell 0.08, pores 0.006.
Habitat.—North-West Pacific, Station 235, surface.
Subgenus 3. Stegaspis, Haeckel, 1881, Prodromus, p. 468.
Definition.—Free apophyses of the radial spines branched, and by reunion of their anastomosing branches forming perforated shields.
5. Orophaspis diporaspis, n. sp.
Parmal pores of the shell circular, of the same size as the sutural pores and the bars. Radial spines sword-shaped, two-edged, very broad; each spine bears an elliptical free shield with two longish pores (opposite on the two flat sides of the sword). Distance of the twenty free two-pored shields from the shell about equal to its diameter.
Dimensions.—Diameter of the shell 0.04, of the pores 0.004.