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

spongiosum, [90].

trigonizon, [91].

Spongodiscida, [573].

Spongodisculus, [576].

Spongodiscus, [576].

aculeatus, [583].

biconcavus, [577].

charybdœus, [593].

cycloides, [578].

ellipticus, [588].