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

Plagonium, [916].

arborescens, [917].

distriactis, [917].

lampoxanthium, [907].

sphærozoum, [916].

trigeminum, [917].

Platybursa, [1051].

compressa, [1051].

Platycryphalus, [1298].

sethodiscus, [1298].