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, 0.09 broad; horn 0.03 long, feet 0.2 long.

Habitat.—Tropical Atlantic, Station 342, depth 1445 fathoms.

7. Petalospyris eupetala, Ehrenberg.

Petalospyris eupetala, Ehrenberg, 1875, Abhandl. d. k. Akad. d. Wiss. Berlin, p. 80, Taf. xxii. fig. 4.

Shell nut-shaped, tuberculate, with slight sagittal stricture and scattered small circular pores. Basal plate with four large collar pores (sometimes surrounded by several small peripheral pores). Apical horn slender, conical, as long as the shell. Feet sixteen to twenty, laminated and truncate, of the same length, nearly vertical and parallel.

Dimensions.—Shell 0.06 long, 0.08 broad; horn and feet 0.05 to 0.07 long.

Habitat.—Fossil in Barbados.

8. Petalospyris anthemis, n. sp.

Shell nut-shaped, spinulate, with deep sagittal stricture and irregular, roundish pores. Basal plate with four large pores of equal size. Apical horn conical, twice as long as the shell. Feet twenty to thirty, laminated and truncate, as long as the shell, divergent.

Dimensions.—Shell 0.05 long, 0.08 broad; horn 0.1 long, feet 0.6 long.