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

Circoporida, [1689].

Circoporus, [1694].

characeus, [1695].

hexastylus, [1695].

octahedrus, [1695].

sexfurcus, [1694].

sexfuscinus, [1695].

Circorrhegma, [1699].

dodecahedra, [1699].

Circospathis, [1696].