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

pedatum, [997].

subcirculare, [996].

thorax, [996].

Toxellium, [995].

Toxidium, [996].

Toxonium, [997].

Trematodiscida, [491].

Trematodiscus, [492].

concentricus, [492].

ellipticus, [494].