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

Monostephus, [940].

Monozonium, [633].

alatum, [633].

amphistylum, [634].

hartingii, [1763].

pleurostylum, [634].

primordiale, [633].

staurostylum, [634].

Myelastrella, [553].

Myelastromma, [553].