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

Dimensions.—Diameter of the sphere 4.2; tangential tubes 0.2 long, 0.01 broad.

Habitat.—Indian Ocean, Madagascar (Rabbe), surface.

18. Aulosphæra multifurca, n. sp.

Radial tubes cylindrical, more or less curved, three to four times as long as the smooth, often curved, tangential tubes; studded with numerous forked, irregular, lateral branches, and armed at the distal end with a verticil of twelve to sixteen divergent, forked, terminal branches.

Dimensions.—Diameter of the sphere 1.2; tangential tubes 0.06 long, 0.003 broad.

Habitat.—Arctic Ocean, Greenland (Olrik), surface.

19. Aulosphæra coronata, n. sp.

Radial tubes spindle-shaped, tapering from the thicker middle part towards both ends, twice as long as the thorny tangential tubes, studded with numerous irregular, curved, lateral spines, and bearing at the distal end a corona of twenty to twenty-five divergent, curved, terminal branches. (Similar to Auloscena flammabunda, Pl. [110], fig. 4.)

Dimensions.—Diameter of the sphere 3.0; tangential tubes 0.2 long, 0.08 broad.

Habitat.—Tropical Atlantic, Station 347, surface.