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

tetraceros, [642].

Amphipylonium, [656].

octoceras, [657].

semilunare, [656].

spinosissimum, [657].

tetraceros, [657].

Amphirrhopalum, [521].

amphidicranum, [521].

bigeminum, [522].

echinatum, [522].