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

acanthonium, [669].

octostylonium, [669].

tricolonium, [669].

Amphitholus, [666].

acanthometra, [667].

armatus, [668].

artidium, [666].

artiscus, [666].

dodecanthus, [667].

octacanthus, [667].