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

15. Aulosphæra bifurca, n. sp.

Radial tubes cylindrical, straight, thorny, twice as long as the smooth, cylindrical, tangential tubes, forked at the distal end, with two curved, convergent, thorny, terminal branches. (Similar to Aulastrum dendroceros, Pl. [111], figs. 4a-4c, but with longer and more spinulate branches.)

Dimensions.—Diameter of the sphere 3.2; tangential tubes 0.25 long, 0.01 broad.

Habitat.—North Pacific, Station 239, surface.

16. Aulosphæra trifurca, n. sp. (Pl. [109], fig. 9).

Radial tubes cylindrical, straight, thorny, about as long as the smooth, cylindrical, tangential tubes, forked at the distal end, with three curved, convergent, terminal branches.

Dimensions.—Diameter of the sphere 2.5 to 3.0; tangential tubes 0.2 long, 0.01 broad.

Habitat.—North Pacific, Station 240, surface.

17. Aulosphæra quadrifurca, n. sp.

Radial tubes cylindro-conical, straight, about as long as the smooth, cylindrical, tangential tubes; studded with numerous irregular lateral branches in the distal half, and armed at the distal end with a cross of four divergent, forked, terminal branches.