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

Plectanida, [919].

Plectaniscus, [924].

archiscenium, [925].

cladoscenium, [925].

clathrocorys, [925].

cortiniscus, [925].

tripodiscus, [925].

Plectanium, [928].

ovodimare, [928].

sphærozoum, [928].