Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index / Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII

by Ernst Haeckel

Habitat.—Central Pacific, Station 265, depth 2900 fathoms.

3. Oroscena cuvieri, n. sp. (Pl. [107], fig. 6).

Radial spines club-shaped, compressed and smooth in the proximal half, spindle-shaped and dimpled in the distal half, about as long as the radius of the shell. Meshes irregularly polygonal, the majority hexagonal, separated by denticulate bars.

Dimensions.—Diameter of the shell 1.5, length of the spines 0.8.

Habitat.—South Pacific, Station 289, depth 2550 fathoms.

4. Oroscena bærii, n. sp. (Pl. [107], fig. 4).

Radial spines nearly spindle-shaped, undulate, tapering from the thicker middle towards both ends, coarsely dimpled, about one-third as long as the radius of the shell. Meshes irregularly polygonal, the majority pentagonal, separated by spinulate bars.

Dimensions.—Diameter of the shell 3.2, length of the spines 1.0 to 1.2, breadth 0.1.

Habitat.—North Pacific, Station 244, depth 2900 fathoms.

5. Oroscena wolffii, n. sp.