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

Trioniscus, [486].

Triopyle, [564].

circulus, [565].

cordigera, [565].

hexagona, [565].

renigera, [565].

spinigera, [566].

trigona, [565].

Triopylida, [563].

Triosphærida, [52].