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.—Shell 0.06 long, 0.08 broad; feet 0.04 long.

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

3. Tristylospyris clavipes, n. sp. (Pl. [84], fig. 15).

Shell nut-shaped, rough, with deep sagittal stricture. Pores small, subregular circular. Basal plate with three large pores. Feet about as long as the shell, slender, straight, divergent, with a spinulate knob at the thickened distal end.

Dimensions.—Shell 0.06 long, 0.08 broad; feet 0.05 long.

Habitat.—Central Pacific, Station 272, depth 2600 fathoms.

4. Tristylospyris triceros, Haeckel.

Ceratospyris triceros, Ehrenberg, 1875, Abhandl. d. k. Akad. d. Wiss. Berlin, p. 66, Taf. xxi. fig. 5.

Shell nut-shaped, tuberculate, without external sagittal stricture. Pores circular, not numerous. Basal plate with four large collar pores. Feet large, cylindrical, three to four times as long as the shell, strongly curved and divergent.

Dimensions.—Shell 0.05 long, 0.07 broad; feet 0.15 to 0.2 long.