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

Triodiscus, [566].

lenticula, [566].

trigonus, [567].

spinosus, [567].

Triolena, [564].

hexabelone, [564].

primordialis, [564].

tribelone, [564].

trigonalis, [564].

trispinosa, [564].