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

spathulata, [1065].

tragopogon, [1066].

Apocubus, [992].

Arachnocalpis, [1172].

ellipsoides, [1172].

sphæroides, [1173].

Arachnocorallium, [1265].

Arachnocoronium, [1266].

Arachnocorys, [1265].

arachnodiscus, [1267].