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

Phractasparium, [808].

Phractaspida, [808].

Phractaspidium, [810].

Phractaspis, [809].

bipennis, [809].

cataphracta, [810].

complanata, [809].

condylophora, [809].

constricta, [810].

prototypus, [809].