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

6. Cœlodendrum lappaceum, n. sp.

Terminal branches regularly forked, with two equal, spinulate, straight or slightly curved fork-branches, diverging at acute angles and covered with small recurved hooks; their end-knobs large, conical, with a prominent apex and a basal corona of six to eight recurved teeth.

Dimensions.—Diameter of the skeleton 1.5 to 1.8, of the valves 0.22.

Habitat.—South Pacific, Stations 285 to 295, depth 1500 to 2600 fathoms.

Subgenus 2. Cœlodendronium, Haeckel.

Definition.—Ramification of the hollow tubes more or less irregular, mainly in the periphery; the terminal ramules of the last branches unequal.

7. Cœlodendrum cervicorne, n. sp. (Pl. [121], fig. 8).

Terminal branches irregularly ramified, with unequal, smooth, curved ramules, diverging at obtuse angles, their end-knobs echinoidal, small, with short, diverging, conical thorns.

Dimensions.—Diameter of the skeleton 1 to 1.2, of the valves 0.2.

Habitat.—South Atlantic, Station 332, depth 2200 fathoms.