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

cyrtopterum, [1140].

orthopterum, [1139].

sigmopterum, [1139].

Archiscenium, [1150].

callimitra, [1151].

clathrocorys, [1150].

cyclopterum, [1151].

quadrispinum, [1150].

tricolpium, [1147].

tripterygium, [1151].